Kishan Bellur

Kishan Bellur

Assistant Professor, Mechanical Engineering

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Aerospace Engineering 101

Published:

This presentation to the local Houghton community included an outdoor model rocket launch demonstration.

Multiscale modeling of liquid-vapor phase change based on experimental data

Published:

The complete cryo-neutron story is presented in an integrated modular approach. The experiments, thermal transport analysis and multi-scale evaporation modeling are combined to generate the accommodation coefficients for both hydrogen and methane. The resulting values are independent of both container material and size and agree well with a fluid independent transition state theory prediction.

Resolving discrepancy in accommodation coefficients by rethinking equilibrium assumptions in evaporation modeling

Published:

The cryo-neutron dataset was used in conjunction with our multiscale evaporation model to show that the interface is non-isothermal. Most studies in the past have assumed an isothermal interface based on equilibrium arguements leading to the discrepency in reported values. We showed that accounting for non-uniformity in temperature and pressure results in a predictable coefficient.

teaching

Fluid Mechanics and Heat Transfer: Internal Flow

Undergraduate course, Michigan Technological University, 2019

In the spring semester of 2019, Dr. Bellur taught his first ever course as primary instructor: a 4 credit junior level undergraduate course in thermo-fluids. This unique course focused on fundamentals and applications of fluid mechanics and heat transfer to fluid flow in ducts and pipes (internal flow). Concepts from fluid mechanics and heat transfer were taught simultaneously in an integrated thermal-fluids approach.

Computational Fluid Dynamics

Undergraduate/Graduate course, University of Cincinnati, 2024

Prof. Bellur typically teaches EGFD 5137/6037: Computational Fluid Dynamics (CFD) every Spring semester. This is a cross-listed 3 credit course open to senior undergraduate and graduate students in the College of Engineering and Applied Sciences. The objective of the course is to familiarize students with computational methods to solve thermal-fluid and heat transfer problems. Numerical solutions to 1D equations are implemented using finite difference and validated with analytical solutions. Various discretization techniques, implicit/explicit schemes, stability and error are discussed. Commercial software tools are introduced for 2D/3D applications. Future versions of the course will transition to open source architecture.

Thermodynamics

Undergraduate course, University of Cincinnati, 2024

Prof. Bellur typically teaches MECH 2010: Thermodynamics every Fall semester. This is a second year, 4 credit, required undergraduate course in Mechanical Engineering. In this course, students will:

  • learn about mass and energy balances for closed and open systems,
  • develop an understanding of entropy, the second law of thermodynamics, and isentropic efficiencies of engineering devices,
  • be able to use these concepts to analyze power and refrigeration cycles, and
  • be able to apply principles of thermodynamics to formulate and solve engineering problems of interest. The course is highly interactive with in-class activities, open-ended projects, weekly group presentations and a tour of the UC power plant.