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Computation
Volume 10
Issue 2
10.3390/computation10020025
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Article

A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop

by
Santosh Kumar Rai
1,2,
Neha Ahlawat
3,
Raghvendra Upadhyay
4,
Pardeep Kumar
5 and
Vinay Panwar
6,*
1
Department of Mechanical Engineering, NCR Campus, SRM Institute of Science and Technology, Ghaziabad 201204, India
2
Department of Mechanical Engineering, Meerut Institute of Engineering and Technology, Meerut 250005, India
3
Department of Mathematics, Jaypee Institute of Information Technology, Noida 201304, India
4
Department of Mechatronics, Terna Engineering College, Navi Mumbai 400706, India
5
Department of Mechanical Engineering, Chandigarh Engineering College Jhanjeri, Mohali 140307, India
6
Mechanical Engineering Department, Netaji Subhas University of Technology, New Delhi 110078, India
*
Author to whom correspondence should be addressed.
Computation 2022, 10(2), 25; https://doi.org/10.3390/computation10020025
Submission received: 28 November 2021 / Revised: 26 January 2022 / Accepted: 3 February 2022 / Published: 8 February 2022
(This article belongs to the Special Issue Computational Heat, Mass, and Momentum Transfer—III)
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Abstract

Nowadays, a prime technology in generation IV nuclear reactors, the supercritical water reactor (SCWR), is the main object of focus. The current article aims to develop a thermal hydraulic numerical model for predicting density wave oscillation (DWO) in a supercritical water natural circulation loop (SCWNCL). A one-dimensional thermal hydraulic mathematical model was developed. The numerical model consists of nonlinear mass, momentum, and energy conservation equations, which were discretized by applying the implicit finite difference technique. The numerical model was validated with experimental results, and numerical simulations were carried out to find the marginal stability boundary (MSB) and draw the stability map for the loop. Further, the effects of geometry (i.e., diameter and hot leg length) and operating parameters (i.e., inlet system pressure and friction factor) on the density wave oscillation of the SCWNCL were analyzed.
Keywords: supercritical water; density wave instability; natural circulation loop supercritical water; density wave instability; natural circulation loop

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MDPI and ACS Style

Rai, S.K.; Ahlawat, N.; Upadhyay, R.; Kumar, P.; Panwar, V. A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop. Computation 2022, 10, 25. https://doi.org/10.3390/computation10020025

AMA Style

Rai SK, Ahlawat N, Upadhyay R, Kumar P, Panwar V. A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop. Computation. 2022; 10(2):25. https://doi.org/10.3390/computation10020025

Chicago/Turabian Style

Rai, Santosh Kumar, Neha Ahlawat, Raghvendra Upadhyay, Pardeep Kumar, and Vinay Panwar. 2022. "A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop" Computation 10, no. 2: 25. https://doi.org/10.3390/computation10020025

APA Style

Rai, S. K., Ahlawat, N., Upadhyay, R., Kumar, P., & Panwar, V. (2022). A Study on the Effect of Geometry and Operating Variables on Density Wave Oscillation in a Supercritical Natural Circulation Loop. Computation, 10(2), 25. https://doi.org/10.3390/computation10020025

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