유한체적법 기반의 격자 볼츠만 해석 기법을 이용한 이차원 압축성 점성 유동 해석SIMULATION OF TWO-DIMENSIONAL COMPRESSIBLE VISCOUS FLOWS USING THE FINITE-VOLUME LATTICE BOLTZMANN METHOD

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 808
  • Download : 0
DC FieldValueLanguage
dc.contributor.author양태호ko
dc.contributor.author권오준ko
dc.date.accessioned2018-12-20T01:49:16Z-
dc.date.available2018-12-20T01:49:16Z-
dc.date.created2018-11-19-
dc.date.created2018-11-19-
dc.date.issued2018-06-
dc.identifier.citation한국전산유체공학회지, v.23, no.2, pp.44 - 52-
dc.identifier.issn1598-6071-
dc.identifier.urihttp://hdl.handle.net/10203/247158-
dc.description.abstractThis paper presents a finite-volume based lattice Boltzmann method for simulation of full compressible flows with flexible Prandtl number. The equilibrium distribution function is replaced with circular function where all mass, momentum, and energy is equally distributed along a circle. Two different density distribution functions are newly introduced to develop lattice Boltzmann model for compressible viscous flows. The equilibrium distribution function for the evolution equations can be derived from the integration of the Lagrangian interpolation polynomial, which depends on the configurations of the lattice model in the velocity phase space. Two-dimensional compressible flows in a shock tube were investigated to verify the accuracy of the current lattice Boltzmann method. The lattice Boltzmann method based on circular function was successfully adopted to two-dimenstional unsteady simulations with strong contact discontinuities. The present lattice Boltzmann code is applied to the subsonic laminar flow over an NACA0012 airfoil, and the computed results show fair agreement with the Navier-Stokes solution. The hypersonic flow passing through a cylinder is selected as a test case to verify the performances of the current lattice Boltzmann approach. The present solver gives a reasonable agreement with the continuum-based simulation results for flows including detached normal shock wave near the leading edge. Our results imply that the replacement of the Maxwellian distribution function with circular function may be the suitable approach for the evaluation of compressible viscous flows.-
dc.languageKorean-
dc.publisher한국전산유체공학회-
dc.subject전산유체역학(Computational Fluid Dynamics)-
dc.subject볼츠만 방정식(Boltzmann Equation)-
dc.subject격자 볼츠만 해석 기법(Lattice Boltzmann Method)-
dc.subject압축성 유동(Compressible Flows)-
dc.subject비정렬 격자계(Unstructured Meshes)-
dc.title유한체적법 기반의 격자 볼츠만 해석 기법을 이용한 이차원 압축성 점성 유동 해석-
dc.title.alternativeSIMULATION OF TWO-DIMENSIONAL COMPRESSIBLE VISCOUS FLOWS USING THE FINITE-VOLUME LATTICE BOLTZMANN METHOD-
dc.typeArticle-
dc.type.rimsART-
dc.citation.volume23-
dc.citation.issue2-
dc.citation.beginningpage44-
dc.citation.endingpage52-
dc.citation.publicationname한국전산유체공학회지-
dc.identifier.doi10.6112/kscfe.2018.23.2.044-
dc.identifier.kciidART002362438-
dc.contributor.localauthor권오준-
dc.description.isOpenAccessN-
dc.subject.keywordPlus전산유체역학(Computational Fluid Dynamics)-
dc.subject.keywordPlus볼츠만 방정식(Boltzmann Equation)-
dc.subject.keywordPlus격자 볼츠만 해석 기법(Lattice Boltzmann Method)-
dc.subject.keywordPlus압축성 유동(Compressible Flows)-
dc.subject.keywordPlus비정렬 격자계(Unstructured Meshes)-
Appears in Collection
AE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0