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Jagdeep B. Doshi

Bio: Jagdeep B. Doshi is an academic researcher from Indian Institute of Technology Bombay. The author has contributed to research in topics: Boiling water reactor & Natural circulation. The author has an hindex of 5, co-authored 6 publications receiving 64 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, a transient thermal hydraulic model is developed with a characteristics-based implicit finite-difference scheme to solve the nonlinear mass, momentum and energy conservation equations in a time-domain.

26 citations

Journal ArticleDOI
TL;DR: In this article, a nuclear coupled thermal-hydraulic model was developed to simulate core-wide and regional stability analysis in time domain within the limitation of desktop research facility for a boiling water reactor subjected to operational transients.

19 citations

Journal ArticleDOI
TL;DR: In this article, a 1-D model for simulating the startup from rest of water cooled single-phase natural circulation loops is presented, where a pseudo-conductivity model was developed to account for heat diffusion caused by local convection currents and results of numerical simulation for loops having horizontal heater and horizontal cooler were presented.

18 citations

Journal ArticleDOI
TL;DR: In this article, the applicability of conventional wall constitutive laws derived from steady state forced convection experiments is examined and a new correlation for wall friction factor is proposed for flow in horizontal pipes under diabatic conditions.

12 citations

Book ChapterDOI
20 Jun 2011
TL;DR: The paper demonstrates the development of a numerical algorithm to solve a set of nonlinear hyperbolic equations in time domain in Eulerian frame of reference using a characteristics based finite difference implicit scheme to analyze density wave oscillations in boiling water nuclear reactor.
Abstract: The paper demonstrates the development of a numerical algorithm to solve a set of nonlinear hyperbolic equations in time domain in Eulerian frame of reference using a characteristics based finite difference implicit scheme to analyze density wave oscillations in boiling water nuclear reactor. The present algorithm removes the uncertainties existing in literature over the treatment of boundary conditions while simulating parallel channel instability of a reactor core by providing requisite mathematical support. The model is used to simulate parallel channel instability of a boiling water reactor core undergoing in-phase and outof-phase modes of oscillations for both forced and natural circulation systems and numerical investigation confirms the existence of type-I and type-II instabilities in appropriate conditions. Next, the numerical simulations are conducted to evaluate the relative dominance of in-phase and out-of-phase modes of oscillations under various operational regime.

5 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, a comprehensive review of dynamic simulation, its development and application to various thermal power plants is presented, highlighting current research efforts and future development potential in the field of thermal power generation.

215 citations

Journal ArticleDOI
TL;DR: A systematic overview of all key two-phase instabilities focusing on the fundamental mechanisms leading to their occurrence is provided, with emphasis on how these mechanisms may change depending on whether flow may be classified as macro- or micro-channel.

74 citations

Journal ArticleDOI
TL;DR: In this paper, a simple rectangular single-phase NCL with an asymmetric heater is numerically analyzed with respect to tested experimental data, and a stability map is obtained, which is valid for all the three regions (laminar, transition, and turbulent).

40 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated the parallel channel density wave instability in the CANDU supercritical water reactor (SCWR) using a 1-D thermal-hydraulic model in the time domain.

26 citations