6 papers
Acoustic Loading Beneath High-Speed Flow Over a Compression Ramp at Different Angles
Ritu Raj Kumar, Nagabhushana Rao Vadlamani, Amareshwara Sainadh Chamarthi
Large-eddy simulations are performed to characterize the pressure fluctuations beneath a hypersonic boundary layer approaching a compression corner. The simulations are carried out…
On Reconstructing Conservative and Primitive Variables: An Eigenvector Analysis on Curvilinear Grids
Amareshwara Sainadh Chamarthi
In wall-modelled large-eddy simulations of hypersonic boundary-layer transition, Hoffmann, Chamarthi and Frankel reported that characteristic reconstruction based on conservative-v…
Wave-Appropriate Reconstruction of Compressible Multiphase and Multicomponent Flows: Fully Conservative and Semi-Conservative Eigenstructures
Amareshwara Sainadh Chamarthi
Compressible multiphase and multicomponent solvers require accurate interface representation without spurious pressure oscillations. At material interfaces, pressure and velocity a…
Wave-appropriate reconstruction of compressible flows: physics-constrained acoustic dissipation and rank-1 entropy wave correction
Amareshwara Sainadh Chamarthi
The wave-appropriate reconstruction approach decomposes the reconstruction procedure into characteristic wave families, centralizing non-acoustic waves to minimize dissipation whil…
Consistent Interface Capturing Adaptive Reconstruction Approach for Viscous Compressible Multicomponent Flows
Amareshwara Sainadh Chamarthi
The paper proposes a physically consistent numerical discretization approach for simulating viscous compressible multicomponent flows. It has two main contributions. First, a conta…
Wave or Physics-Appropriate Multidimensional Upwinding Approach for Compressible Multiphase Flows
Amareshwara Sainadh Chamarthi
This paper introduces multidimensional algorithms for simulating multiphase flows, leveraging the wave structure of the Euler equations in characteristic space and the physical pro…