Results 1 to 10 of about 35,333 (231)

Overview of key technologies of high power arc heater

open access: yesXibei Gongye Daxue Xuebao, 2021
Arc-heated facilties play an important role in ground tests, such as appraisal of thermal protection systems(TPS) of various hypersonic vehicles and simulation of a high Mach scramjet's thermal structure and combustion chamber performance.

doaj   +1 more source

Dynamic Modeling and Analysis of Airborne Towed Objects

open access: yesHangkong gongcheng jinzhan, 2021
In some aviation application scenes,it is necessary to complete the specific missions of functional towed by aircrafts,such as airborne trailing submarine communication antenna.
ZHANG Ge   +3 more
doaj   +1 more source

A preliminary study on static pressure probe mobile measurement method for flow field in transonic wind tunnel

open access: yesXibei Gongye Daxue Xuebao, 2021
The axial Mach number distribution of the core flow for model in a transonic wind tunnel is an important index to evaluate the performance of the flow field, which is usually measured by the centerline probe.

doaj   +1 more source

Acceleration of a Production-Level Unstructured Grid Finite Volume CFD Code on GPU

open access: yesApplied Sciences, 2023
Due to the complex topological relationship, poor data locality, and data racing problems in unstructured CFD computing, how to parallelize the finite volume method algorithms in shared memory to efficiently explore the hardware capabilities of many-core
Jian Zhang   +5 more
doaj   +1 more source

Numerical investigation on NACA0012 airfoil with tubercular structure [PDF]

open access: yesEPJ Web of Conferences, 2022
Humpback whales have very special fins, which reduce the friction force by the projections on the fins and enhance the lift force with increasing angle of attack. Thus, it has opportunity to move with less energy. In this study, the tubular structure was
Açıkel Halil Hakan   +3 more
doaj   +1 more source

Effects of Trailing Edge Deflections Driven by Shape Memory Alloy Actuators on the Transonic Aerodynamic Characteristics of a Super Critical Airfoil

open access: yesActuators, 2021
A smart structure to actuate a morphing trailing edge based on the super critical airfoil NASA sc-0714(2) was designed and verified in a transonic wind tunnel.
Binbin Lv, Yuanjing Wang, Pengxuan Lei
doaj   +1 more source

Noise prediction research of a scaled turboprop aircraft

open access: yesXibei Gongye Daxue Xuebao, 2021
Aerodynamic noise level has become an important performance index of civil aircraft, and it is drawing more and more attention. Most airframe noise research based on CFD method is aimed at aircraft individual parts at present, while lack of noise ...
Song Minhua   +5 more
doaj   +1 more source

Numerical Investigation on a Porous Wall Model for the Transonic Wall Interference

open access: yesHangkong gongcheng jinzhan, 2021
Flows passing a wide-body aircraft at cruising, drag divergence or diving status are transonic. When the aircraft model is tested in a transonic wind tunnel, strong shock waves may be induced due to the tunnel wall and the model, and incur complex ...
MOU Bin   +4 more
doaj   +1 more source

Unsteady aerodynamics over surface of a chambered airfoil at stall angle and low Reynolds number [PDF]

open access: yesEPJ Web of Conferences, 2022
The proposal of this paper is clear to reveal and understand the unsteady flow characteristics over the surface of chambered airfoil operating especially at low Reynolds numbers by detecting boundary layer separation and laminar separation bubble (LSB ...
Genç Gamze   +2 more
doaj   +1 more source

Experimental investigation on effect of partial flexibility at low aspect ratio airfoil - Part II: Installation both on suction and pressure surface [PDF]

open access: yesEPJ Web of Conferences, 2022
In this experimental study, flow over NACA 4412 airfoil with flexible membrane mounted both on suction surface and pressure surface was investigated at Reynolds number of 5x104 and different angles of attack.
Koca Kemal   +2 more
doaj   +1 more source

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