Results 31 to 40 of about 1,013,931 (235)

Visualization experiment study on oscillatory flow characteristics of two-phase flow [PDF]

Journal of Hebei University of Science and Technology
In order to solve the oscillatory heat transfer problem of gas-liquid two-phase flow of cooling oil gallery of piston, a reciprocating oscillatory experimental device reformed by diesel engine was designed and established. The oscillatory flow process of
Hairong ZHU, Xu XIAO, Kailun ZHANG, Lin LI, Zhao WANG   +4 more
doaj   +1 more source

Thermal Characteristics Investigation of the Internal Combustion Engine Cooling-Combustion System Using Thermal Boundary Dynamic Coupling Method and Experimental Verification

Energies, 2018
The engine cooling system must be able to match up with the stable operating conditions so as to guarantee the engine performance. On the working cycle level, however, the dynamic thermo-state of engines has not been considered in the cooling strategy ...
Junhong Zhang, Zhexuan Xu, Jiewei Lin, Zefeng Lin, Jingchao Wang, Tianshu Xu   +5 more
doaj   +1 more source

Heat transfer analysis of piston cooling using nanofluids in the gallery

Micro & Nano Letters, 2015
Attaining proper temperature in engines is always a challenge for engine manufacturers primarily because temperature has a significant role in engine performance and emissions. With the development of new technology in the field of nanofluids, it seems very promising to use nanofluids as the coolant in internal combustion engines. In this reported work,
Hao Liu, Minli Bai, Jizu Lv, Peng Wang, Yuyan Wang, Chengzhi Hu   +5 more
openaire   +1 more source

Theoretical and experimental study of radiation pressure-induced mechanical oscillations (parametric instability) in optical microcavities [PDF]

, 2006
Radiation pressure can couple the mechanical modes of an optical cavity structure to its optical modes, leading to parametric oscillation instability. This regime is characterized by regenerative oscillation of the mechanical cavity eigenmodes.
Carmon, T., Kippenberg, T. J., Rokhsari, H., Vahala, K. J.   +3 more
core   +1 more source

Fluid-Structure Interaction Heat Transfer of Piston with Consideration of Oil Oscillating Cooling and In-Cylinder Local Heat Transfer

Chemical Engineering Transactions, 2017
Taking the piston of heavy commercial vehicle as an example, in-cylinder local heat transfer boundary condition is obtained through the calculation of intake, spray, combustion and exhaust process; the heat transfer boundaries of the inner oil gallery ...
X. Liu, D. Cheng, J. Zhou, Q. Zheng, X. Mi   +4 more
doaj   +1 more source

Coupling of ultrathin tapered fibers with high-Q microsphere resonators at cryogenic temperatures and observation of phase-shift transition from undercoupling to overcoupling [PDF]

, 2012
We cooled ultrathin tapered fibers to cryogenic temperatures and controllably coupled them with high-Q microsphere resonators at a wavelength close to the optical transition of diamond nitrogen vacancy centers.
Fujiwara, Masazumi, Noda, Tetsuya, Takeuchi, Shigeki, Tanaka, Akira, Toubaru, Kiyota, Zhao, Hong-Quan   +5 more
core   +2 more sources

Simultaneous radiation pressure induced heating and cooling of an opto-mechanical resonator

, 2012
Cavity opto-mechanics enabled radiation-pressure coupling between optical and mechanical modes of a micro-mechanical resonator gives rise to dynamical backaction, enabling amplification and cooling of mechanical motion.
Bhave, Sunil A., Tallur, Siddharth
core   +1 more source

Numerical and experimental investigation on the effect of the two-phase flow pattern on heat transfer of piston cooling gallery

Mechanics & Industry, 2019
To study factors affecting the formation and conversion of two-phase flow pattern as well as the heat transfer of piston cooling gallery, a transient visual target test bench was set up to research the oscillatory flow characteristics in the cooling ...
L. Deng, Jian Zhang, Guannan Hao, Liu Jing   +3 more
semanticscholar   +1 more source

Evanescent straight tapered-fiber coupling of ultra-high Q optomechanical micro-resonators in a low-vibration helium-4 exchange-gas cryostat

, 2013
We developed an apparatus to couple a 50-micrometer diameter whispering-gallery silica microtoroidal resonator in a helium-4 cryostat using a straight optical tapered-fiber at 1550nm wavelength.
Arcizet, O., Kippenberg, T. J., Rivière, R., Schliesser, A.   +3 more
core   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source