supported by National Natural Science Foundation of China(Nos.61971345 and 12175177);the Foundation for Key Laboratories of National Defense Science and Technology of China(No.614220120030810).
This work studies the turbulent drag reduction(TDR)effect of a flat plate model using a spanwise slot blowing pulsed plasma actuator(SBP-PA).Wind tunnel experiments are carried out under a Reynolds number of 1.445×10...
the National Natural Science Foundation of China(No.51906008,No.51822602);National Science and Technology Major Project(2017-Ⅲ-0003-0027);the Fundamental Research Funds for the Central Universities(No.YWF-20-BJ-J-822).
This experiment used a parallel array of hot wire probes to simultaneously measure the temperature and velocity fields in the non-isothermal turbulent boundary layer of a rotating straight channel. The Reynolds number...
The authors would like to acknowledge the financial support received from the project“Drag Reduction via Turbulent Boundary Layer Flow Control(DRAGY)”.The DRAGY project(April 2016-March 2019)is a China-EU Aeronautical Cooperation project,which is co-funded by Ministry of Industry and Information Technology(MIIT),China,and Directorate-General for Research and Innovation(DG RTD),European Commission.
An array of distributed round synthetic jets was used to control a fully developed turbulent boundary layer.The study focused on the related skin friction drag reduction and mechanisms involved.The control effects wer...
A heat transfer study was conducted,in the framework of Computational Fluid Dynamics(CFD),on a Hot-Wire Chemical Vapour Deposition(HWCVD)reactor chamber to determine a safe deposition distance for atomic hydrogen prod...
Supported by the National Key Research and Development Program of China(2018YFB1500400-2018YFB1500403);the National Natural Science Foundation of China(61741404,61464007);the Jiangxi Provincial Key Research and Development Foundation(2016BBH80043)
GeSi:H films are prepared by hot-wire chemical vapor deposition(CVD) with high hydrogen dilution, DH=98%. Effects of hot wire temperature(Tw) on deposition rate, structural properties and bandgap of GeSi:H films are s...
Engineering and Physical Sciences Research Council(EPSRC)(EP/L00044X/1,EP/N013247/1,EP/L02112G/1)
We demonstrate low-loss hydrogenated amorphous silicon(a-Si:H) waveguides by hot-wire chemical vapor deposition(HWCVD). The effect of hydrogenation in a-Si at different deposition temperatures has been investigated an...
The purpose of this study is to investigate experimentally the effects of orbital motion on the velocity field of boundary layer flow over a rotating disk. The characteristics of velocity field at a fixed orbital angu...
supported by the Fundamental Research Funds for the Central Universities,China(3132015027);the general science research project of the education department of Liaoning Province,China(L2013198);the Natural Science Foundation of Liaoning Province,China(2014025012)
The effects of Reynolds number on both large-scale and small-scale turbulence properties are investigated in a square jet issuing from a square pipe. The detailed velocity fields were measured at five different exit R...
The objective of this study is to experimentally visualize traveling vortices in the boundary layer on a rotating disk under orbital motion. The orbital radius is half of the disk’s diameter (200 mm) and the maximum ...
supported by the Harada Memorial Foundation and a Grant-in-Aid for Scientific Research (No. 24560202) from the Japan Society for the Promotion of Science
The objective of this study is to experimentally examine the characteristics of transient vortices in the boundary layer on a disk undergoing both rotation and orbital motion. The velocity fluctuations on a rotating, ...