63 citations · 201 across the 16 of their papers we have counts for
16 papers
High-order meshless global stability analysis of Taylor-Couette flows in complex domains
Akash Unnikrishnan, Vinod Narayanan, Surya Pratap Vanka
Recently, meshless methods have become popular in numerically solving partial differential equations and have been employed to solve equations governing fluid flows, heat transfer,…
Taylor-Couette flow in an elliptical enclosure generated by an inner rotating circular cylinder
Akash Unnikrishnan, Surya Pratap Vanka, Vinod Narayanan
Taylor-Couette flow between rotating cylinders is a classical problem in fluid mechanics and has been extensively studied in the case of two concentric circular cylinders. There ha…
Dynamics of two air bubbles rising in a shear-thinning fluid
Purushotam Kumar, Surya Pratap Vanka
In this paper, we have studied the three-dimensional dynamics of two equally sized air bubbles rising in a shear-thinning fluid. We have used the combined level set and volume of f…
Dynamics of Argon Gas Bubbles Rising in Liquid Steel in the Presence of Transverse Magnetic Field
Purushotam Kumar, Surya Pratap Vanka
Bubbly flows are present in various industrial processes including metallurgical processes in which gas bubbles are injected at the bottom of bulk liquid metal to stir the liquid m…
Simulation of Heat Conduction in Complex Domains of Multi-material Composites using a Meshless Method
Naman Bartwal, Shantanu Shahane, Somnath Roy +1
Several engineering applications involve complex materials with significant and discontinuous variations in thermophysical properties. These include materials for thermal storage,…
Consistency and Convergence of a High Order Accurate Meshless Method for Solution of Incompressible Fluid Flows
Shantanu Shahane, Surya Pratap Vanka
Computations of incompressible flows with velocity boundary conditions require solution of a Poisson equation for pressure with all Neumann boundary conditions. Discretization of s…
Shear-Driven Flow in an Elliptical Enclosure Generated by an Inner Rotating Circular Cylinder
Akash Unnikrishnan, Shantanu Shahane, Vinod Narayan +1
Shear-driven flow between a rotating cylinder and a stationary elliptical enclosure is studied in this paper. Two-dimensional time-dependent Navier Stokes equations are solved usin…
Application of a High Order Accurate Meshless Method to Solution of Heat Conduction in Complex Geometries
Naman Bartwal, Shantanu Shahane, Somnath Roy +1
In recent years, a variety of meshless methods have been developed to solve partial differential equations in complex domains. Meshless methods discretize the partial differential…
A Semi-Implicit Meshless Method for Incompressible Flows in Complex Geometries
Shantanu Shahane, Surya Pratap Vanka
We present an exponentially convergent semi-implicit meshless algorithm for the solution of Navier-Stokes equations in complex domains. The algorithm discretizes partial derivative…
A Non-Nested Multilevel Method for Meshless Solution of the Poisson Equation in Heat Transfer and Fluid Flow
Anand Radhakrishnan, Michael Xu, Shantanu Shahane +1
We present a non-nested multilevel algorithm for solving the Poisson equation discretized at scattered points using polyharmonic radial basis function (PHS-RBF) interpolations. We…
Large Scale GPU Based Simulations of Turbulent Bubbly Flow in a Square Duct
Purushotam Kumar, Surya Pratap Vanka
In this paper, we present the results of a numerical study of air-water turbulent bubbly flow in a periodic vertical square duct. The study is conducted using a novel numerical tec…
Sensitivity Analysis of Lift and Drag Coefficients for Flow over Elliptical Cylinders of Arbitrary Aspect Ratio and Angle of Attack using Neural Network
Shantanu Shahane, Purushotam Kumar, Surya Pratap Vanka
Flow over bluff bodies has multiple engineering applications and thus, has been studied for decades. The lift and drag coefficients are practically important in the design of many…
A High-Order Accurate Meshless Method for Solution of Incompressible Fluid Flow Problems
Shantanu Shahane, Anand Radhakrishnan, Surya Pratap Vanka
Meshless solution to differential equations using radial basis functions (RBF) is an alternative to grid based methods commonly used. Since the meshless method does not need an und…
Optimization of Solidification in Die Casting using Numerical Simulations and Machine Learning
Shantanu Shahane, Narayana Aluru, Placid Ferreira +2
In this paper, we demonstrate the combination of machine learning and three dimensional numerical simulations for multi-objective optimization of low pressure die casting. The cool…
Finite Volume Simulation Framework for Die Casting with Uncertainty Quantification
Shantanu Shahane, Narayana Aluru, Placid Ferreira +2
The present paper describes the development of a novel and comprehensive computational framework to simulate solidification problems in materials processing, specifically casting p…
Uncertainty Quantification in Three Dimensional Natural Convection using Polynomial Chaos Expansion and Deep Neural Networks
Shantanu Shahane, Narayana R. Aluru, Surya Pratap Vanka
This paper analyzes the effects of input uncertainties on the outputs of a three dimensional natural convection problem in a differentially heated cubical enclosure. Two different…