Results 71 to 80 of about 155,583 (207)

Optical technique to study the impact of heavy rain on aircraft performance [PDF]

A laser based technique was investigated and shown to have the potential to obtain measurements of the size and velocity of water droplets used in a wind tunnel to simulate rain. A theoretical model was developed which included some simple effects due to
Hess, C. F., Li, F.
core   +1 more source

The Aerodynamic Drag of Flying-boat Hull Model as Measured in the NACA 20-foot Wind Tunnel I. [PDF]

Measurements of aerodynamic drag were made in the 20-foot wind tunnel on a representative group of 11 flying-boat hull models. Four of the models were modified to investigate the effect of variations in over-all height, contours of deck, depth of step ...
Hartman, Edwin P
core   +1 more source

Effect of Spray Parameters on Vacuum Cooling of Tofu

Zhileng xuebao, 2021
More and more attention is paid to vacuum spray cooling (VSC) because it can effectively reduce the water loss rate in the process of food vacuum cooling.
Peng Yuhang, Du Shuaihua, Jin Tingxiang, Chen Hua, Wei Yao, Huang Yu, Zhang Pan   +6 more
doaj  

Liner environment effects study [PDF]

, 1984
The Liner Environment Effects Study Program is aimed at establishing a broad heat transfer data base under controlled experimental conditions by quantifying the effects of the combustion system conditions on the combustor liner thermal loading and on the
Ekstedt, E. E., Venkataramani, K. S.
core   +1 more source

Single string cavitation and swirling flow in a nozzle and a hollow-cone spray

Journal of Fluid Science and Technology
Single string cavitation (SC) and a swirling flow around it may occur in a fuel injector of diesel engines at the moment of low needle lift, if the tip of the needle valve is close to the nozzle entrance.
Dongping SHEN, Akira SOU, Yoshitaka WADA, Yoshiharu UEKI   +3 more
doaj   +1 more source

Experimental and CFD Study of Parameters Affecting Glue Spray Atomization

Fluids
This study investigates the effects of air pressure, glue pressure, and viscosity on atomization characteristics through experimental and simulation methods, aiming to reveal gas–liquid interaction mechanisms and optimize process parameters.
Zixian Jiang, Shutao Wei, Fuzeng Wang
doaj   +1 more source

Development of an Impinging-jet Fuel-injection Valve Nozzle [PDF]

During an investigation to determine the possibilities and limitations of a two-stroke-cycle engine and ignition, it was necessary to develop a fuel injection valve nozzle to produce a disk-shaped, well dispersed spray.
Hemmeter, G H, Spanogle, J A
core   +1 more source

Effect of Viscosities on the Spray Characteristics of Pressure Swirl Nozzle

Journal of Applied Fluid Mechanics, 2020
The effects of medium viscosity on the spray flow rate, spray Sauter Mean Diameter, droplet velocity and spray cone angle of pressure swirl nozzles are investigated by making use of the particle dynamics analysis system and high-speed photographic system.
Z. M. Liu, J. Y. Lin, H. L. Zheng, Y. Pang   +3 more
doaj  

Performance of an alpha-vane and pitot tube in simulated heavy rain environment [PDF]

Experimental tests were conducted in the UDRI Environmental Wind/Rain Tunnel to establish the performance of an alpha-vane, that measures angle of attack, in a simulated heavy rain environment.
Fiscus, I. B., Luers, J. K.
core   +1 more source

Investigation on Dynamic Thermal Transfer Characteristics of Electromagnetic Rail Spray Cooling in Transient Processes

Energies
Electromagnetic Railguns Face Severe Ablation and Melting Risks Due to Extremely High Transient Thermal Loads During High-Speed Launching, Directly Impacting Launch Reliability and Service Life.
Shuo Ma, Hongting Ma
doaj   +1 more source