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Linear and Nonlinear PSE for Compressible Boundary Layers
Linear and Nonlinear PSE for Compressible Boundary Layers
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About the Book

Compressible stability of growing boundary layers is studied by numerically solving the partial differential equations under a parabolizing approximation. The resulting parabolized stability equations (PSE) account for nonparallel as well as nonlinear effects. Evolution of disturbances in compressible flat-plate boundary layers are studied for freestream Mach numbers ranging from 0 to 4.5. Results indicate that the effect of boundary-layer growth is important for linear disturbances. Nonlinear calculations are performed for various Mach numbers. Two-dimensional nonlinear results using the PSE approach agree well with those from direct numerical simulations using the full Navier-Stokes equations while the required computational time is less by an order of magnitude. Spatial simulation using PSE were carried out for both the fundamental and subharmonic type breakdown for a Mach 1.6 boundary layer. The promising results obtained show that the PSE method is a powerful tool for studying boundary-layer instabilities and for predicting transition over a wide range of Mach numbers. Chang, Chau-Lyan and Malik, Mujeeb R. and Erlebacher, Gordon and Hussaini, M. Yousuff Unspecified Center NAS1-18605; NAS1-19480; NAS1-18240; RTOP 505-90-52-01...


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Product Details
  • ISBN-13: 9781729307403
  • Publisher: Independently Published
  • Publisher Imprint: Independently Published
  • Height: 280 mm
  • No of Pages: 52
  • Spine Width: 3 mm
  • Width: 216 mm
  • ISBN-10: 172930740X
  • Publisher Date: 26 Oct 2018
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 145 gr


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