Calculation of Helium Coolant Behavior in A Single Cooling Channel in MHTGR Reflector Region During Pressurized Conduction Cooldown Scenario Using the COMSOL Multiphysics Code

2018 ◽  
Author(s):  
Lucas Beveridge ◽  
Richard R. Schultz
Keyword(s):  
Comsol Multiphysics ◽  
Cooling Channel ◽  
Helium Coolant

Complete Muon Collider Cooling Channel Design & Simulations

2012 ◽  
Author(s):  
Cary Yoshikawa
Keyword(s):  
Cooling Channel ◽  
Channel Design ◽  
Muon Collider

scholarly journals Improving Cooling Performance of Injection Molding Tool with Conformal Cooling Channel by Adding Hybrid Fillers

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1224
Author(s):  
Chil-Chyuan Kuo ◽  
Wei-Hua Chen
Keyword(s):  
Thermal Conductivity ◽  
Injection Molding ◽  
Cooling Time ◽  
Performance Ratio ◽  
Cooling Efficiency ◽  
Cooling Channel ◽  
Conformal Cooling Channel ◽  
Conformal Cooling ◽  
Fused Deposition ◽  
Silicone Rubber Mold

Silicone rubber mold (SRM) is capable of reducing the cost and time in a new product development phase and has many applications for the pilot runs. Unfortunately, the SRM after injection molding has a poor cooling efficiency due to its low thermal conductivity. To improve the cooling efficiency, the thermal conductivity of the SRM was improved by adding fillers into the SRM. An optimal recipe for fabricating a high cooling efficiency low-pressure injection mold with conformal cooling channel fabricated by fused deposition modeling technology was proposed and implemented. This study proposes a recipe combining 52.6 wt.% aluminum powder, 5.3 wt.% graphite powder, and 42.1 wt.% liquid silicon rubber can be used to make SRM with excellent cooling efficiency. The price–performance ratio of this SRM made by the proposed recipe is around 55. The thermal conductivity of the SRM made by the proposed recipe can be increased by up to 77.6% compared with convention SRM. In addition, the actual cooling time of the injection molded product can be shortened up to 69.1% compared with the conventional SRM. The actual cooling time obtained by the experiment is in good agreement with the simulation results with the relative error rate about 20%.

Investigation into surface acoustic wave sensor for DCM gas detection using COMSOL multiphysics

2021 ◽  
Vol 572 (1) ◽  
pp. 94-105
Author(s):  
Mohamed Moustafa ◽  
Ghaylen Laouini ◽  
Mostafa ElNaggar ◽  
Tariq AlZoubi
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Gas Detection ◽  
Comsol Multiphysics ◽  
Acoustic Wave Sensor

Inhomogeneous behavior of supercritical hydrocarbon fuel flow in a regenerative cooling channel for a scramjet engine

2021 ◽  
pp. 106901
Author(s):  
Feng Sun ◽  
Xin Li ◽  
Sandra K.S. Boetcher ◽  
Gongnan Xie
Keyword(s):  
Hydrocarbon Fuel ◽  
Cooling Channel ◽  
Regenerative Cooling ◽  
Fuel Flow ◽  
Scramjet Engine

Simulation-based assessment of coupled frequency response of magneto-electro-elastic auxetic multifunctional structures subjected to various electromagnetic circuits

2021 ◽  
pp. 146442072110219
Author(s):  
Vinyas Mahesh ◽  
Vishwas Mahesh ◽  
Dineshkumar Harursampath ◽  
Ahmed E Abouelregal
Keyword(s):  
Electric Fields ◽  
Solid Mechanics ◽  
Natural Frequencies ◽  
Comsol Multiphysics ◽  
Simulation Based ◽  
Electric And Magnetic Fields ◽  
Auxetic Structures ◽  
Triangular Elements ◽  
Benchmark Solutions ◽  
Free Vibration Response

This article deals with the modeling of magneto-electro-elastic auxetic structures and developing a methodology in COMSOL Multiphysics® to assess the free vibration response of such structures when subjected to various electromagnetic circuit conditions. The triple energy interaction between elastic, magnetic, and electric fields are established in the COMSOL Multiphysics® using structural mechanics and electromagnetic modules. The multiphase magneto-electro-elastic material with different percentages of piezoelectric and piezomagnetic phases are used as the material. In the solid mechanics module, the piezoelectric and piezomagnetic materials were created in stress-charge and stress-magnetization forms, respectively. The electric and magnetic fields are defined in COMSOL Multiphysics® through electromagnetic equations. Further, the customized controlled meshing constituted of free tetrahedral and triangular elements is adapted to trade-off between the accuracy and the computational expenses. The eigenvalue analysis is performed to obtain the natural frequencies of the MEE re-entrant auxetic structures. Also, the efficiency of smart auxetic structures over conventional honeycomb structures is presented throughout the manuscript. In addition, the discrepancy in the natural frequencies of the structures considering coupled and uncoupled state is also illustrated. It is believed that the modeling procedure and its outcomes serve as benchmark solutions for further design and analysis of smart auxetic magneto-electro-elastic structures.

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