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Microgravity Investigation of Seepage Flows in Porous Media
Springer Science and Business Media LLC - Tập 31 - Trang 629-639 - 2019
The capillary driven seepage in porous media under microgravity conditions is investigated. Experiments on the flow of a liquid in an inhomogeneous artificial porous medium are presented. A non-stationary mathematical model of the flow of a multiphase fluid in a sample of a porous medium is described. The experimental data are compared with the results of a three-dimensional numerical simulation o...... hiện toàn bộ
Effects of standing sound wave on droplet combustion
Springer Science and Business Media LLC - Tập 14 - Trang 29-32 - 2003
Combustion of an isolated fuel droplet in acoustic fields is investigated by microgravity experiments. The influence of standing sound wave is examined by varying amplitude of velocity fluctuation, frequency of sound and location of droplet. Variation of flame shape and burning rate is determined. As a result, spreading flame to one direction as well as normal gravity is observed as amplitude of v...... hiện toàn bộ
Surface Properties of Liquid Al-Ni Alloys: Experiments Vs Theory
Springer Science and Business Media LLC - Tập 32 - Trang 1049-1064 - 2020
The present study is an overview of the surface properties of liquid Al-Ni alloys, which are of great importance for the design and development of new Al-Ni and Ni-based industrial alloys, widely used as functional and structural materials. The solidification and thus, the microstructural evolution are directly dependent on the interface/surface properties of metallic melts. Therefore, numerical s...... hiện toàn bộ
Đánh giá thiết bị đo khối lượng cơ thể BMMD của Dr. William Thornton tại Skylab Dịch bởi AI
Springer Science and Business Media LLC - Tập 32 - Trang 275-280 - 2019
Các đặc điểm của mô hình trước chuyến bay của thiết bị đo khối lượng cơ thể Skylab BMMD (Body Mass Measurement Device), được tạo ra vào khoảng năm 1970 bởi nhóm do Dr. William Thornton dẫn dắt, đã được đánh giá chính xác bằng cách sử dụng một giao thoa kế quang học trên mặt đất. Việc hiệu chuẩn BMMD được thực hiện bằng cách sử dụng các khối kim loại có trọng lượng từ 4.134 kg đến 100.131 kg, trong...... hiện toàn bộ
#Skylab #BMMD #đo khối lượng cơ thể #giao thoa kế quang #hiệu chuẩn #độ không chắc chắn
Drop Tower Setup to Study the Diffusion-driven Growth of a Foam Ball in Supersaturated Liquids in Microgravity Conditions
Springer Science and Business Media LLC - Tập 29 - Trang 297-304 - 2017
The diffusion-driven growth of a foam ball is a phenomenon that appears in many manufacturing process as well as in a variety of geological phenomena. Usually these processes are greatly affected by gravity, as foam is much lighter than the surrounding liquid. However, the growth of the foam free of gravity effects is still very relevant, as it is connected to manufacturing in space and to the for...... hiện toàn bộ
Root Growth Patterns and Morphometric Change Based on the Growth Media
Springer Science and Business Media LLC - Tập 28 - Trang 621-631 - 2016
Arabidopsis thaliana roots skew with minimal waving in the microgravity environment of the International Space Station. Root skewing and root waving have been studied on the ground as well as in spaceflight, but often using different media types. In this study, Arabidopsis seedlings were grown on nutrient media plates that were comprised of various gelling agents with vari...... hiện toàn bộ
Heat Transfer Through the Interface and Flow Regimes in Liquid Bridge Subjected to Co-Axial Gas Flow
Springer Science and Business Media LLC - Tập 24 - Trang 297-306 - 2012
We present results of an extensive numerical study on the thermocapillary (Marangoni) convection and a heat transfer through the interface in a liquid bridge of Pr = 68. The geometry of the physical problem is a cylindrical and non-deformable liquid bridge concentrically surrounded by an annular gas channel under conditions of zero gravity. The gas flow is co- or counter-directed with respect to t...... hiện toàn bộ
An experimental study of bubble behavior in a temperature gradient near a heated wall under low-gravity and microgravity conditions aboard NASA DC9 airplane
Springer Science and Business Media LLC - Tập 14 - Trang 34-43 - 2003
The behavior of a single bubble and a pair of bubbles under microgravity conditions has been investigated using the NASA-DC9 aircraft in order to understand the effects of various parameters and to control the bubble behavior in space. Silicone oil was used as the test liquid, and a nitrogen gas bubble was injected from the top wall under different experimental conditions. In an isothermal case, t...... hiện toàn bộ
Life History Responses and Feeding Behavior of Microcrustacea in Altered Gravity – Applicability in Bioregenerative Life Support Systems (BLSS)
Springer Science and Business Media LLC - Tập 29 - Trang 241-249 - 2017
Manned space missions, as for example to the planet Mars, are a current objective in space exploration. During such long-lasting missions, aquatic bioregenerative life support systems (BLSS) could facilitate independence of resupply from Earth by regenerating the atmosphere, purifying water, producing food and processing waste. In such BLSS, microcrustaceans could, according to their natural role ...... hiện toàn bộ
Flex Heat Pipe East-West Deployable Radiator
Springer Science and Business Media LLC - Tập 31 - Trang 311-316 - 2019
Lockheed Martin has developed a patented solution for increasing payload power on communications satellites which introduces a coupled East-West radiator assembly with deployable radiators. The deployable radiators are deployed in integration and test phases to provide equipment access. The equipment is mounted onto internal structural panels and is thermally coupled to both east and west radiator...... hiện toàn bộ
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