왕복형 기관의 성능및 방사소음예측의 기초연구ediction of Performance Radiated Orifice Noise for Reciprocating Engines - a First Phase

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 260
  • Download : 0
One dimensional gas dynamic analyses are widely used to predict the wave action phenomena in engine manifolds, and the flow velocity at the intake inlet or exhaust outlet may also be used to estimate the noise radiated by these systems. The accurate numerical methodology is required to capture the shocks and contact discontinuities in pipes, and to impose appropriate boundary conditions at the pipe junctions in engine simulation codes. The present study adopt the high order numerical scheme, shock capturingENO(Essentially Non-Oscillatory) upwind scheme with ACM(Artificial Compression Method), for pipe calculations. In comparison with a previous iterative method, a non-iterative procedure is devised that can also archive high-order accuracy in space with introducing Thompson's characteristic approach for the boundary coindition calculations. The key subjects are presented that include the numerical schemes for pipe flow and the non-iterative procedure for boundary condition as a first phase report.
Publisher
한국자동차공학회
Issue Date
1999-11-01
Language
KOR
Citation

한국자동차공학회 추계학술대회, pp.580 - 586

URI
http://hdl.handle.net/10203/137214
Appears in Collection
AE-Conference Papers(학술회의논문)
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