29 citations · 123 across the 19 of their papers we have counts for
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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…
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…
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…
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…
A generalized adaptive central-upwind scheme for compressible flow simulations and preventing spurious vortices
Amareshwara Sainadh Chamarthi
This work introduces a novel adaptive central-upwind scheme designed for simulating compressible flows with discontinuities in the flow field. The proposed approach offers signific…
Centralized Gradient-Based Reconstruction for Wall Modelled Large Eddy Simulations of Hypersonic Boundary Layer Transition
Natan Hoffmann, Amareshwara Sainadh Chamarthi, Steven H. Frankel
In this study, we introduce a robust central Gradient-Based Reconstruction (GBR) scheme for the compressible Navier-Stokes equations. The method leverages transformation to charact…
A Wave Appropriate Discontinuity Sensor Approach for Compressible Flows
Amareshwara Sainadh Chamarthi, Natan Hoffmann, Steven Frankel
In this work, we propose a novel selective discontinuity sensor approach for numerical simulations of the compressible Navier-Stokes equations. Since transformation to characterist…
Efficient high-order Gradient-based Reconstruction for compressible flows
Amareshwara Sainadh Chamarthi
This paper extends the gradient-based reconstruction approach of Chamarthi \cite{chamarthi2023gradient} to genuine high-order accuracy for inviscid test cases involving smooth flow…
On the Application of Gradient Based Reconstruction for Flow Simulations on Generalized Curvilinear and Dynamic Mesh Domains
Hemanth Chandravamsi, Amareshwara Sainadh Chamarthi, Natan Hoffmann +1
Accurate high-speed flow simulations of practical interest require numerical methods with high-resolution properties. In this paper, we present an extension and demonstration of th…
On the role of spectral properties of viscous flux discretization for flow simulations on marginally resolved grids
Amareshwara Sainadh Chamarthi, Hemanth Chandra Vamsi K, Natan Hoffmann +2
In this note, the importance of spectral properties of viscous flux discretization in solving compressible Navier-Stokes equations for turbulent flow simulations is discussed. We s…
Gradient Based Reconstruction: Inviscid and viscous flux discretizations, shock capturing, and its application to single and multicomponent flows
Amareshwara Sainadh Chamarthi
This paper presents a gradient-based reconstruction approach for simulations of compressible single and multi-species Navier-Stokes equations. The novel feature of the proposed alg…