TY  - BOOK
AU  - Deka, Mandeep
AU  - Tomar, Gaurav advised
AU  - Kumaran, V advised
TI  - Stability of wall-bounded compressible shear flows
U1  - 620 
PY  - 2023///
CY  - Bangalore
PB  - IISc
KW  - Hydrodynamic stability
KW  - Compressible flows
KW  - Asymptotic analysis
KW  - Reynolds numbers
N1  - include bibliographic reference and index; PhD; 2023; Mechanical engineering
N2  - In this work, the linear stability of compressible shear flows in channels and pipes are studied. A steady fully-developed laminar flow of an ideal gas, driven in a channel and a pipe by a constant body acceleration, is considered as the base state. The base flow profiles, being functions of Mach number, are obtained through numerical solution of the Navier-Stokes equations under steady parallel-flow conditions. Small amplitude normal mode perturbations are added to this flow and temporally growing solutions are studied. The evolution equations for the normal modes, that form a linear eigenvalue problem, are solved numerically by Chebyshev-Pseudospectral method. For both channel and pipe flows, the eigenspectra show presence of compressible higher modes that do not have a counterpart in the incompressible limit.
UR  - https://etd.iisc.ac.in/handle/2005/6163
ER  -