The influence of coolant jet direction on heat reduction on the nose cone with Aerodome at supersonic flow

Moradi, Rasoul; Mosavat, Mohammad; Gerdroodbary, M. Barzegar; Abdollahi, Ali; Amini, Younes

doi:10.1016/j.actaastro.2018.06.026

Cited by 98 publications

(19 citation statements)

References 46 publications

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“…Numerical investigation of the fluid flow in the packings is thoroughly considered in recent studies [23][24][25][26][27][28][29][30]. Computational fluid dynamics (CFD) is an effective scheme to decrease the cost of the experiments in numerous applications [31][32][33][34][35][36][37][38]. Moreover, this method allows for estimating the influence of diverse factors.…”

Section: Introductionmentioning

confidence: 99%

Computational Fluid Dynamics Characterization of High‐Capacity Structured Packing

et al. 2020

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The novel wire gauze structured packing, PACK‐860, was characterized by means of numerical methods. The main features of PACK‐860 such as height equivalent to a theoretical plate (HETP) and dry/wet pressure drop were evaluated. The flow structure in this packing was described by numerical simulation. To estimate the amount of HETP and dry/wet pressure drop, three‐dimensional computational fluid dynamics (3D CFD) modeling with the Eulerian‐Eulerian multiphase approach was applied. The average relative errors between the results obtained from CFD simulation and experimental findings for mass transfer efficiency and wet and dry pressure drop were assessed. Numerical observations were found to agree well with the empirical results, proving the reliability of CFD simulations for modeling separation processes.

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Section: Introductionmentioning

confidence: 99%

Computational Fluid Dynamics Characterization of High‐Capacity Structured Packing

et al. 2020

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“…For modeling of the collision, the variable hard sphere (VHS) collision model is used. Collision pairs are chosen based on the no time counter (NTC) method, in which the computational time is proportional to the number of simulator particles [36].…”

Section: Numerical Proceduresmentioning

confidence: 99%

“…This method is highly popular and conventional for the simulation of the problems with low-pressure condition. Hence, numerous scholars and scientists [31][32][33][34][35][36][37][38][39][40] applied this for the simulation of scientific and engineering problems.…”

Section: Introductionmentioning

confidence: 99%

Application of Knudsen Force for Development of Modern Micro Gas Sensors

Gerdroodbary¹

2020

Gas Sensors

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Development of new simple gas sensor is highly significant due to its various industrial applications. In this chapter, comprehensive studies on the new micro gas sensor of Micro In-plane Knudsen Radiometric Actuator (MIKRA) are done to evaluate the performance of its technique on the detection of gas. This new micro gas sensor works by the radiometric phenomena, which occurs due to temperature difference in rarefied gas. In order to simulate this micro gas sensor, direct simulation Mont Carlo (DSMC) is recognized as a reliable method. This study highly focused on the main mechanisms of the flow feature and force generation in low-pressure domain. In order to study this micro gas sensor, comprehensive numerical results are thoroughly investigated and the effects of primary factors and parameters are revealed. In addition, the main details of computational approach for the simulation of this micro gas sensor are fully presented. Finally, the performance of this sensor in various operating conditions is explained and main findings are discussed.

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“…Recently, Huang et al (20) gave a detailed survey on the drag and heat flux reduction induced by the spike and its combinations, namely the combination of the spike and the aerodisk or jet. Moradi et al (21) investigated the influence of the jet direction on the thermal protection induced by the combinational spike and jet concept numerically. Eghlima et al (22,23) studied the drag and heat flux reduction induced by the combination of spike and counterflowing jet at high Mach number flow.…”

Section: Introductionmentioning

confidence: 99%

Influences of lateral jet location and its number on the drag reduction of a blunted body in supersonic flows

Liao

et al. 2020

Aeronaut. j.

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The analysis of the aerodynamic environment of the re-entry vehicle attaches great importance to the design of the novel drag reduction strategies, and the combinational spike and jet concept has shown promising application for the drag reduction in supersonic flows. In this paper, the drag force reduction mechanism induced by the combinational spike and lateral jet concept with the freestream Mach number being 5.9332 has been investigated numerically by means of the two-dimensional axisymmetric Navier-Stokes equations coupled with the shear stress transport (SST) k-ω turbulence model, and the effects of the lateral jet location and its number on the drag reduction of the blunt body have been evaluated. The obtained results show that the drag force of the blunt body can be reduced more profoundly when employing the dual lateral jets, and its maximum percentage is 38.81%, with the locations of the first and second lateral jets arranged suitably. The interaction between the leading shock wave and the first lateral jet has a great impact on the drag force reduction. The drag force reduction is more evident when the interaction is stronger. Due to the inclusion of the lateral jet, the pressure intensity at the reattachment point of the blunt body decreases sharply, as well as the temperature near the walls of the spike and the blunt body, and this implies that the multi-lateral jet is beneficial for the drag reduction.

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The influence of coolant jet direction on heat reduction on the nose cone with Aerodome at supersonic flow

Cited by 98 publications

References 46 publications

Computational Fluid Dynamics Characterization of High‐Capacity Structured Packing

Computational Fluid Dynamics Characterization of High‐Capacity Structured Packing

Application of Knudsen Force for Development of Modern Micro Gas Sensors

Influences of lateral jet location and its number on the drag reduction of a blunted body in supersonic flows

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