- Type of paper
: Paper in journal
Title: Line-Break instruments in the gas distribution system- an
inevitable fact or a fiction
- Authors:
- Doliner, Zdravko (77531)
- Virag, Zdravko (73376)
- Šunić, Miljenko (75911)
Journal: Nafta
Number: 5
ISSN: 0027-755
Volume: 42
Year: 1991
Pages: from 213 to 219
Number of references: 4
Language: hrvatski
Summary: The pipe break in high pressure /7 bar/ distribution
systemhaving a gas leakage in the atmosphere as a consequencerepresents a
problem concerned with economy, safety, ecology andtechnique.Technically
the problem relates to the determination ofprotection, aiming at the
decrease of the gas loss, denger andenvironment pollution.In high pressure
gas transportation systems/50 bar/ this problem is solved by building in of
the line breakinstruments which segment the system by means of
preventingdevices that are injected by pipe break detection
system.Thedetection system is based on measuring of temporal change
ofpressure.In this paper the applicability of line-breakinstruments in gas
distribution system characterized by lowerworking pressure, is analyzed
from the aspect of detection systemas the most important part of the
instrument.The analysis hasbeen carried out on the basis of the numerical
simulation ofdynamic behavior of the simple model of gas distribution
systemby using a hydrodynamic model of one dimensional isotermic
gasflow.The result of the analysis are pointing on the
decreasingpossibility of the pipe break in the gas distribution system
/7bar/, in comparison with the possibility to detect the pipe breakin gas
transportation system /50 bar/, as well as to thenecessitz of simulation of
dynamic behavior of gas distributionsystem as basis for projecting of
detection system.
Keywords: Line-Break System, Gas Network, One-dimensional Unsteady Flow,Method of Characteristics
- Type of paper
: Paper in journal
Title: Line-Break instruments in the gas distribution system-an
inevitable fact or a fiction
- Authors:
- Doliner, Zdravko (77531)
- Virag, Zdravko (73376)
- Šunić, Miljenko (75911)
Journal: gwf
Number: 7
ISSN: 0016-4909
Volume: 133
Year: 1992
Pages: from 361 to 366
Number of references: 4
Language: njemački
Summary: The pipe break in high pressure /7 bar/ distribution
systemhaving a gas leakage in the atmosphere as a consequencerepresents a
problem concerned with economy, safety, ecology andtechnique.Technically
the problem relates to the determination ofprotection, aiming at the
decrease of the gas loss, denger andenvironment pollution.In high pressure
gas transportation systems/50 bar/ this problem is solved by building in of
the line breakinstruments which segment the system by means of
preventingdevices that are injected by pipe break detection
system.Thedetection system is based on measuring of temporal change
ofpressure.In this paper the applicability of line-breakinstruments in gas
distribution system characterized by lowerworking pressure, is analyzed
from the aspect of detection systemas the most important part of the
instrument.The analysis hasbeen carried out on the basis of the numerical
simulation ofdynamic behaviour of the simple model of gas distribution
systemby using a hydrodynamic model of one dimensional isotermic
gasflow.The result of the analysis are pointing on the
decreasingpossibility of the pipe break in the gas distribution system
/7bar/, in comparison with the possibility to detect the pipe breakin gas
transportation system /50 bar/, as well as to thenecessitz of simulation of
dynamic behavior of gas distributionsystem as basis for projecting of
detection system.
Keywords: Line-Break System, Gas Network, One-dimensional Unsteady Flow,Method of Characteristics
- Type of paper
: Paper in journal
Title: A Method for Calculating the Wave Resistance of SWATH
Ships
- Authors:
- Werner, Andreja (73380)
Journal: Brodogradnja
Number: 3
ISSN: 0007-215
Volume: 41
Year: 1993
Pages: from 171 to 176
Number of references: 4
Language: hrvatski
Summary: A method for calculating the wave resistance of SWATH
shipsbased on the linearized theory and potential flow ispresented.The
proposed numerical procedure saves the calculationtime.The comparison of
the numerical results for two SWATH shipswith the towing-test results shows
that the presented method iswell-suited for hydrodynamic performance
predictions in the earlystage of design process.
Keywords: SWATH, potential flow, theoretical wave resistance
- Type of paper
: Paper in journal
Title: Theoretical Wave Resistance of Multi-Hulled Vessels with
Wigley Hull
- Authors:
- Werner, Andreja (73380)
Journal: Brodogradnja
Number: 3
ISSN: 0007-215X
Volume: 42
Year: 1994
Pages: from 207 to 213
Number of references: 3
Language: hrvatski
Summary: The linearised wave resistance theory was applied to obtain
theoretical wave resistance of multihulled vessels having mathematically
defined hull (Wigley hull). A computer program was developed. It provides a
useful design tool at the preliminary design stage for screening suitable
combinations of hull parameters and selecting of design speeds and the hull
spacing which would offer beneficial wave drag resistance.
Keywords: Wave resistance, Multihulled vessels, Potential flow, Wigley hull form.
- Type of paper
: Paper in proceedings
Title: Viscous flow calculation araund a submerged spheroid
- Authors:
- Virag, Zdravko (73376)
- Trincas, Giorgio
- Editors
- Brebbia, C.A.
- Carlomagno, G.M.
Proceedings title: Vol 1:Heat and Fluid Flow
Language: engleski
Place: Sauthampton, Engleska
Year: 1993
ISBN/ISSN: 1-85166-964-7
Pages: from 263 to 282
Meeting: SIXT INTERNATIONAL CONFERENCE ON COMPUTATIONAL METHODS AND EXPERIMENTAL MEASUREMENTS 93
Held: from 05/03/93 to 05/05/93
Summary: On the basis of the standard k-E turbulence model a
fullyelliptic viscous flow calculation araund the stern of
six-to-onesubmerged spheroid is performed.The control-volume method on
astaggered grid arrangement is employed using a body-fittedcoordinate
system.The theoretical predictions on a relativelypoor grid show
satisfactory agreement with experimentalmeasurements for the flow
characteristics upstream and downstreamfrom the stern of the body.In order
to improve the resultaccuracy additional investigations are required as
regards thegrid dependency and the turbulence modelling.
Keywords: k-E turbulence model, control volume method, submerged spheroid
- Type of paper
: Paper in proceedings
Title: Location of the pipe breakage detectors in the gas network
- Authors:
- Šavar, Mario (128561)
- Virag, Zdravko (73376)
- Doliner, Zdravko (77531)
- Editors
- Pejčinović, Vladimir
- Gradiški, Marija
- Antolić, Josip
Proceedings title: ZBORNIK RADOVA
Language: hrvatski
Place: Opatija
Year: 1993
Pages: from 0 to 0
Meeting: VIII. MEĐUNARODNI SUSRET STRUČNJAKA ZA PLIN
Held: from 05/05/93 to 05/07/93
Summary: The gas network breakage is a problem of economy, ecology
andsecurity.Simulation of unsteady flow in gas networks presentedin this
work is based upon mathematical model.Starting from basicphysical laws,
one-dimensional unsteady diabatic viscouscompressible real gas flow model
is developed.The method ofcharacteristics is choosen and realized for
integrating system ofpartial, non-linear, non-homogeneous, first-order
differentialequation.The characteristic gas network has been calculated
withaccepted algorithm.The analysis results show that time pressuregradient
is the most significant parameter for detection of thegas network
breakage.The basic conclusions about time pressuregradient signal reduction
has been determined based on simulationresults and analysis.A method and
numerical procedure for the gasnetwork breakage location has been
determined.The phony signalhas been analyzed and a method for
distinguishing real fromphony signal has been presented.
- Type of paper
: Paper in proceedings
Title: Hidrodynamic models of one-dimensional compressible fluid
flow in gas networks
- Authors:
- Doliner, Zdravko (77531)
- Virag, Zdravko (73376)
- Šunić, Miljenko (75911)
- Editors
- Pejčinović, Vladimir
- Gradiški, Marija
- Antolić, Josip
Proceedings title: ZBORNIK RADOVA
Language: hrvatski
Place: Opatija
Year: 1993
Pages: from 1 to 5
Meeting: VIII. MEĐUNARODNI SUSRET STRUČNJAKA ZA PLIN
Held: from 05/05/93 to 05/07/93
Summary: In this work, starting from fundamental physical laws,
balancesof mass, momentum, moment of momentum and energy are done for
awhole process-energy system, and then, assuming one-dimensionalflow, it is
shown how to come to various models ofunsteady/steady,
compressible/incompressible fluid flow.
Keywords: Basic lows, one-dimensional flow, compressible flow
- Type of paper
: Paper in proceedings
Title: Analysis of the gas pipeline dynamics based on the
linearised hydrodynamic model
- Authors:
- Virag, Zdravko (73376)
- Šavar, Mario (128561)
- SUTLOVIĆ, IGOR (186385)
- Editors
- Antolić, Josip
- Pejčinović, Vladimir
- Balagović, Mladen
Proceedings title: ZBORNIK RADOVA IX.
Language: hrvatski
Place: Opatija
Year: 1994
Pages: from 1 to 8
Meeting: IX. MEĐUNARODNI SUSRET STRUČNJAKA ZA PLIN
Held: from 05/04/94 to 05/06/94
Summary: Analysis od the gas network dynamics, for simple systems
consisting of supply regulator valve, pipeline and consumer is presented in
this work. In order to estimate gas network dynamic behavior, the resulting
supply signal is derived as a function of the periodically oscillating
consumer signal. Hydrodynamical model of unsteady, one - dimensional,
isotermic, compressible, viscous flow is chosen. The analytic solution of
the problem considered is found on the basis of the linearized mathematical
model. The obtained results directly show the frequency domain in which the
resonance appears, in simple gas network.
Keywords: Linearised hydrodynamical model, Gas System, Dynamical behaviour.
- Type of paper
: Paper in proceedings
Title: Applicability of the linearised hydrodynamic model for
analysis of the gas network dynamics
- Authors:
- Virag, Zdravko (73376)
- Šavar, Mario (128561)
- SUTLOVIĆ, IGOR (186385)
- Editors
- Štambuk-Boršić, Neda
Proceedings title: ZBORNIK RADOVA 39. GODIŠNJI SKUP KoREMA
Language: hrvatski
Place: Zagreb
Year: 1994
ISBN/ISSN: 953-6037-02-5
Pages: from 277 to 281
Meeting: 39. GODIŠNJI SKUP KoREMA
Held: from 04/27/94 to 04/27/94
Summary: Analysis of the gas network dynamics, for simple systems
consisting of supply regulator valve, pipeline and consumer is presented in
this work. In order to estimate gas network dynamic behaviour, the
resulting supply signal is derived as a function of the periodically
oscillating consumer signal. Hydrodynamical model of unsteady,
one-dimensional, isotermic, compressible, viscous flow is chosen. The model
is presented by system of partial, non-linear, non-homogeneous first order
differential equations of hyperbolic type. The analytic solution of the
problem considered is found on the basis of the linearized mathematical
model, and compared to the results obtained by numerical method of
characteristics on the basis of the non-linear hydrodynamical model. The
obtained results directly show the domain in which results of the
linearised model can be accepted as accurate ones for the particular usage.
Keywords: Linearised hydrodynamical model, Gas System, Dynamical behaviour.
- Type of paper
: Paper in proceedings
Title: The experimental determination of the viscous resistance
of submerged bodies
- Authors:
- Doliner, Zdravko (77531)
- Editors
- Sorić, Jurica
- Vranković, Nikola
Proceedings title: ZBORNIK RADOVA 1. KONGRESA HRVATSKOG DRUŠTVA ZA MEHANIKU
Language: hrvatski
Place: Pula
Year: 1994
ISBN/ISSN: 953-96243-0-4
Pages: from 399 to 406
Meeting: 1. KONGRES HRVATSKOG DRUŠTVA ZA MEHANIKU
Held: from 09/14/94 to 09/17/94
Summary: Following the Betz idea, the expression suitable for the
experimental determination of the total viscous resistance of the submerged
body, moving at a constant speed in a fluid at rest, is derived, using the
Reynolds equations of motion and continuity equation. The experimental
metod of determining the total viscous resistance is based upon the
comparison of the real and fictitious irrotational motion which is
identical to the real flow in the domain outside the boundary layer and
wake. In the present work the realtionships for the lower and upper bounds
of the total viscous resistance are derived in terms of the measurable
quantities.
- Type of paper
: Paper in proceedings
Title: APPLICATION OF CORRECTIVE ANALYTICAL DIFFERENCING SCHEME
TO SOLVING NAVIER-STOKES EQUATION
- Authors:
- Virag, Zdravko (73376)
- Korbar, Radoslav (128513)
- Editors
- Sorić, Jurica
- Vranković, Nikola
Proceedings title: ZBORNIK RADOVA 1. KONGRESA HRVATSKOG DRUŠTVA ZA MEHANIKU
Language: hrvatski
Place: Pula
Year: 1994
ISBN/ISSN: 953-96243-0-4
Pages: from 407 to 414
Meeting: 1. KONGRES HRVATSKOG DRUŠTVA ZA MEHANIKU
Held: from 09/14/94 to 09/17/94
Summary: The corrective analytical differencing (CADI) scheme, based
upon the one-dimensional exact solution of the convection-diffusion
equation with constant coefficients and the constant source term, is
compared to the popular exponential differencing scheme (EDS) of Spalding.
Both schemes are applied in solving Navier-Stokes and Euler equations by
the finite volume method in body-fitted coordinates. A significant
improvement of solution accuracy is obtained by applying the CADI scheme,
because of reduced false diffusion.
Keywords: Control Volume Methode, Body-Fitted Coordinates, Differencing Scheme, Navier-Stokes Equation, False Diffusion.
- Type of paper
: Paper in proceedings
Title: Analysis of connecting a new consumer to a gas network
- Authors:
- Virag, Zdravko (73376)
- Šavar, Mario (128561)
- SUTLOVIĆ, IGOR (186385)
- Editors
- Pejčinović, Vladimir
- Antolić, Josip
- Balagović, Mladen
Proceedings title: ZBORNIK RADOVA X. MEĐUNARODNI SUSRET STRUČNJAKA ZA PLIN
Language: hrvatski
Place: Opatija
Year: 1995
Pages: from 1 to 7
Meeting: X. MEĐUNARODNI SUSRET STRUČNJAKA ZA PLIN
Held: from 05/03/95 to 05/05/95
Summary: Analysis of connecting a new consumer to a high pressure
gas network is performed. The analysis was based on the prediction of
steady isothermal gas flow in gas network which operates close to the limit
of its capacity. It has been shown that before connecting a new consumer,
the complete hydrodinamic analysis of gas network flow has to be performed.
Keywords: Gas supply network, Hardy-Cross method, Connecting a new consumer.
- Type of paper
: Ph.D.
Title: A FINITE VOLUME METHOD FOR THE PREDICTION OF FLUID FLOW IN
COMPLEX GEOMETRIES
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Author: VIRAG ZDRAVKO
Date of defense: 12/09/91
Language: hrvatski
Number of pages: 200
- Type of paper
: M.A.
Title: UNSTEADY FLOW SIMULATION IN THE GAS NETWORK
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Author: ŠAVAR MARIO
Date of defense: 11/19/91
Language: hrvatski
Number of pages: 140
Summary: The gas network breakage is a problem of economy, ecology
andsecurity.Simulation of unsteady flow in gas networks presentedin this
work is based upon mathematical model.Starting from basicphysical laws,
one-dimensional unsteady diabatic viscouscompressible real gas flow model
is developed.The method ofcharacteristics is choosen and realized for
integrating system ofpartial, non-linear, non-homogeneous, first-order
differentialequation.The characteristic gas network has been calculated
withaccepted algorithm.The analysis results show that time pressuregradient
is the most significant parameter for detection of thegas network
breakage.The basic conclusions about time pressuregradient signal reduction
has been determined based on simulationresults and analysis.A method and
numerical procedure for the gasnetwork breakage location has been
determined.The phony signalhas been analyzed and a method for
distinguishing real fromphony signal has been presented.
- Type of paper
: M.A.
Title: THE METHOD FOR SOLVING k-E MODEL OF TURBULENCE IN
COURVILINEAR COORDINATES
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Author: KORBAR RADOSLAV
Date of defense: 11/18/92
Language: hrvatski
Number of pages: 172
Summary: A number of practically interesting mathematical
formulations ofthe k-E turbulence model is derived by applying the
preparedmathematical apparatus, pertaining to the case of
steady,two-dimensional, incompressible flow of one-phase, one
component,chemically inert fluid, in absence of external mass
forces.Aclassification of possible formulations has been made, along
withtheir evaluation with respect to their potentially successfulsolving,
using FVM.
- Type of paper
: M.A.
Title: Influence of Variation of Outer Impeller Diameter on
Energy Performances of Centrifugal Pumps
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Author: SUTLOVIĆ IGOR
Date of defense: 09/18/95
Language: hrvatski
Number of pages: 114
Summary: In this work analysis of experimentally measured energy
performances of series pumps with the variable outer impeller diameters is
completed. Rotational speed is constant and spiral case is the same.
Measured performances in dimensional form (dependance of height, power and
efficiency to flow ratio) are transformed to nondimensional one. Comparison
between energy performances of series of pumps in nondimensional form and
the results of application of similarity to same series of pumps is made to
examine their coincidence. For series of impeller diameters from 150 mm to
190 mm good coincidence is remarked, while impellers od 130 and 140 mm
diameter deviate significantly. This can be explained by the fact that
gometric cimilarity is not completely satisfied.
Keywords: Centrifugal pump, Similitude, Energy Performances.
- Type of paper
: Mentorship
Title: AN INFLUENCE OF THE OUTLET ANGLE OF THE PREWHIRL ON THE
CAVITATION CHARACTERISTIC OF CENTRIFUGAL PUMPS
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Mentor: DOLINER ZDRAVKO
Date of defense: 04/27/93
Number of pages: 153
Author: Cukina Ivan
Degree level: M.A.
- Type of paper
: Mentorship
Title: SOLVING A TRANSIENT FLUID FLOW USING A FINITE VOLUME
METHOD
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Mentor: DOLINER ZDRAVKO
Date of defense: 07/13/93
Number of pages: 108
Author: Stracaboško Rudolf
Degree level: M.A.
- Type of paper
: Mentorship
Title: THE HYDRAULIC TRANSPORT OF NONNEWTON FLUDS UDED IN A
CONDITOR INDUSTY
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Mentor: DOLINER ZDRAVKO
Date of defense: 03/23/92
Number of pages: 119
Author: Papeša Živko
Degree level: M.A.
- Type of paper
: Mentorship
Title: THE METHOD FOR SOLVING k-E MODEL OF TURBULENCE IN
COURVILINEAR COORDINATES
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Mentor: DOLINER ZDRAVKO
Date of defense: 11/18/92
Number of pages: 172
Author: Korbar Radoslav
Degree level: M.A.
- Type of paper
: Mentorship
Title: UNSTEADY FLOW SIMULATION IN THE GAS NETWORK
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Mentor: DOLINER ZDRAVKO
Date of defense: 11/19/91
Number of pages: 140
Author: Šavar Mario
Degree level: M.A.
- Type of paper
: Mentorship
Title: A FINITE VOLUME METHOD FOR THE PREDICTION OF FLUID FLOW IN
COMPLEX GEOMETRIES
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Mentor: DOLINER ZDRAVKO
Date of defense: 12/09/91
Number of pages: 200
Author: Virag Zdravko
Degree level: Ph.D.
- Type of paper
: Mentorship
Title: WATERHAMMER ANALYSIS IN PIPE NETWORKS BY METHOD OF
CHARACTERISTICS
Faculty: Fakultet strojarstva i brodogradnje Zagreb
Mentor: DOLINER ZDRAVKO
Date of defense: 03/20/95
Number of pages: 148
Author: Živić Mr.sc. Marija
Degree level: M.A.
- Type of paper
: Computer program
Title: A SOFTWARE PACKAGE FOR RESISTANCE PREDICTION OF TWIN-HULL
SHIPS
- Authors:
- Nebergoj, Radoslav
- Virag, Zdravko (73376)
Odering party: UNIVERSITA DEGLI STUDI DI TRIESTE,DIPARTIMENTO DI INGEGNERIA NAVALE
Institution depot: UNIVERSITA DEGLI STUDI DI TRIESTE,DIPARTIMENTO DI INGEGNERIA NAVALE
HW platform: VAX
Operating system: VMS
Programming language: Fortran
Year: 1992
Summary: The software package dealing with the prediction of
totalresistance of twin-hull vessels based on the linearized theory ofwave
resistance.To the purpose, an integrated numericalprocedure, which can
simplify the computer program and savecalculation time, has been
developed.Towing testing results canbe analysed by the computer code and a
comparison of these datawith the corresponding theoretical predictions can
be displayed.
Keywords: Software package, Total resistance predictions, twin-hull-ships, Linearised wave theory
- Type of paper
: Other
Title: A SOFTWARE PACKAGE FOR RESISTANCE PREDICTION OF TWIN-HULL
SHIPS
- Authors:
- Nebergoj, Radoslav
- Virag, Zdravko (73376)
Type of work: Priručnik za korištenje kompjutorskog programa
Language: engleski
Summary: The software package dealing with the prediction of
totalresistance of twin-hull vessels based on the linearized theory ofwave
resistance.To the purpose, an integrated numericalprocedure, which can
simplify the computer program and savecalculation time, has been
developed.Towing testing results canbe analysed by the computer code and a
comparison of these datawith the corresponding theoretical predictions can
be displayed.
Keywords: Software package, Total resistance predictions, twin-hull-ships, Linearised wave theory
- Type of paper
: Other
Title: RESISTANCE PREDICTION OF SWATH VESSELS
- Authors:
- Nebergoj, Radoslav
- Virag, Zdravko (73376)
Type of work: Izvještaj o znanstvenom radu za vrijeme studijskog boravka
Language: engleski
Summary: This paper deals with the problem of calculating the
totalresistance of SWATH vesels based on the linearised theory of
waveresistance. To the purpose, a modified numerical procedure whichcan
simplify the computer program and save calculation time, hasbeen developed.
Towing testing results are provided for checkingthe validity and the limits
of the newly developed approach. Thecomparison of these data with the
corresponding theoreticalpredictions shows that the present method can give
fine accuracyof computation for practical purpose and is suited to
furtherdevelopment in SWATH form design.
Keywords: Linearised wave theory, wave resistance, SWATH ships
- Type of paper
: Other
Title: A NEW DIFFERENCING SCHEME FOR SOLVING THE
CONVECTION-DIFFUSION EQUATION PART1:DEFINITION AND APPLICATION IN CARTESIAN
COORDINATES
- Authors:
- Virag, Zdravko (73376)
- Trincas, Giorgio
Type of work: Izvještaj o znanstvenom radu za vrijeme studijskog boravka
Language: engleski
Summary: In order to reduce false diffusion in numerical solutions
ofconvection-diffusion equation, a new differencing scheme suitableto
control-volume method is proposed. The new correctiveanalytical
differencing (CADI) scheme is based on theone-dimensional exact solution of
the convection-diffusionequation with constant coefficients and constant
source term.Accuracy of the new scheme is assessed through a series of
testsituations with known exact solutions. Results show relevantaccuracy
improvements with respect to the exponentialdifferencing scheme (EDS) of
Spalding. The new scheme isconsistent, simple, accurate, and easy to
implement in existingcodes based on EDS scheme. Development and
applications of CADIdifferencing scheme in body-fitted coordinates are
explored inPart 2.
Keywords: Convection-Diffusion Equation, Control-Volume Method, Differencing Scheme, False Diffusion, Accuracy
- Type of paper
: Other
Title: A NEW DIFFERENCING SCHEME FOR SOLVING THE
CONVECTION-DIFFUSION EQUATION PART2:APPLICATION IN BODY-FITTED COORDINATES
- Authors:
- Virag, Zdravko (73376)
- Trincas, Giorgio
Type of work: Izvještaj o znanstvenom radu za vrijeme studijskog boravka
Language: engleski
Summary: In this paper a control volume method is developed
forintegrating general convection-diffusion equation innon-orthogonal
(body-fitted) coordinates. The new proposed CADI(Corrective Analytical
Differencing) scheme defined in Part 1 andstandard EDS (Exponential
Difference) scheme of Spalding arecompared. Comparison of the differencing
schemes in three typicalsituations of pure convective and
convective-diffusive transportin different orthogonal and non-orthogonal
grids for a range ofcell-Peclet numbers are provided. Results show that
CADIdifferencing scheme significantly improves solution accurracy
byreducing the influence of false diffusion. The new differencingscheme is
straightforward and may be easily extended to 3Dsituations.
Keywords: Convection-Diffusion Equation, Control-Volume Method, Body-Fitted Coordinates, Differencing Scheme, False Diffusion
- Type of paper
: Other
Title: HYDRODYNAMIC DETERMING COMPONENTS OF TOTAL RESISTANCE FOR
SURFACE SHIP
- Authors:
- Doliner, Zdravko (77531)
Type of work: skripte
Language: talijanski
- Type of paper
: Other
Title: A NEW DIFFERENCING SCHEME IN NON-ORTOGHONAL COORDINATES
FOR DECREASE FALSE DIFFUSION
- Authors:
- Virag, Zdravko (73376)
- Trincas, Giorgio
Type of work: Izvještaj o znanstvenom radu za vrijeme studijskog boravka
Language: talijanski
