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Open AccessJournal ArticleDOI

Free flight wind tunnel test similarity law derivation for light store separation from aircraft

Fei Xue, +5 more
- 31 May 2019 - 
- Vol. 11, Iss: 5, pp 168781401985306
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TLDR
In this paper, the similarity law for free flight test of light store separation from aircraft was deduced based on linear displacement motion similarity and angular displacement motion similarities, and the authors derived the distance from the aircraft to the ground plane.
Abstract
Based on the linear displacement motion similarity and angular displacement motion similarity, the similarity law for free flight test of light store separation from aircraft is deduced. The proble...

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Citations
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Journal ArticleDOI

Derivation and validation of wind tunnel free-flight similarity law for store separation from aircraft

TL;DR: In this paper, the effect of the initial separation velocity on the motion similarity is considered and the model mass parameter characteristics and separation velocity equation are solved to determine similarity laws for wind tunnel tests, greatly improving the accuracy and applicability of test results from wind tunnels.
Journal ArticleDOI

Optimization and verification of free flight separation similarity law in high-speed wind tunnel

TL;DR: The optimized similarity law is suitable not only for the launching of the buried ammunition compartment and external stores, but also for the test design of projectile launching and gravity separation of high-speed weapon delivery test.
Journal ArticleDOI

Derivation and verification of a similarity law for wind-tunnel free-flight tests of heavy-store separation

TL;DR: In this paper, a similarity law for wind-tunnel free-flight tests of heavy-store separation is derived, which is used to carry out unsteady experimental research on the separation of a heavy store such as an air-launch rocket, and this new law provides strong support for establishing the safety boundaries of heavy store separation.
Journal ArticleDOI

Optimization and verification of wind tunnel free-flight similarity law for separation of cluster munition

TL;DR: The results show that the new similarity laws derived for different types of submunitions can greatly reduce the errors caused by previous similarity laws.
Journal ArticleDOI

Aerodynamic characteristics of store during lateral jet assisted separation from cavity using free drop technique

TL;DR: Wang et al. as mentioned in this paper proposed a separation scheme of using lateral jet to assist store safe separation, which ensures that the store is continuously subjected to down head moment during separation, so as to ensure safe separation.
References
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Journal ArticleDOI

Store separation from cavities at supersonic flight speeds

TL;DR: In this paper, an experimental investigation has been conducted to determine the aerodynamic characteristics of a typical wing-control missile configuration during separation from a box-type cavity having depth to length ratios (D/L) ranging from 0.088 to 0.225.
Book

Flow Around an Object Projected from a Cavity Into a Supersonic Freestream

TL;DR: In this paper, the free shear structure of a supersonic flow over a cavity with and without a store was studied. But the free-shear structure was not observed in the case of the Mach 2.9 flow, whereas the Mach 1.8 flow did not.
Proceedings ArticleDOI

Application of a CFD Moving -Body System to Multi component Store Separation *

TL;DR: Computational fluid dynamics time-accurate trajectories were performed for a sequential release of two GBU-12s from an F-18C/D aircraft and compared to flight data, which validated the process for computing trajectories for classes of stores with moving and deploying control surfaces.