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| 1 | Modeling of rotational supercavitating evaporator and the geometrical characteristics of supercavity within显示文摘In this paper,a rotational supercavitating evaporator(RSCE)was at first modeled by means of theoretical analysis approach.The geometrical characteristics of supercavity in the modeled RSCE were then studied through numerical simulations.The current research objectives consist in determination of shape of the supercavitator(which in the plane of rotation generates supercavity occupying the most volume between blades),and location of the area suitable for steam extraction by revealing the inner structure of supercavity.Analytical analysis was performed by solving empirical equations for the shape of RSCE,through which an evaluation of two-dimensional relative position of supercavity trailing edge for different shapes of the supercavitator has been realized.Numerical simulation was then carried out,by numerically solving the unsteady Navier-Stokes equations in their conservation form coupled with the Rayleigh-Plesset cavitation and Shear-Stress Transport turbulence models,for verification of the results obtained from empirical equations.Despite unreliable assumption of applicability of empirical equations we have confirmed similarity of the supercavity shapes obtained by both methods for the same RSCE.Therefore,the shape of supercavitator calculated by using empirical equations is acceptable,which provides a simple but reliable approach for design of RSCE.The inner structure of supercavity obtained by numerical simulation has indicated position and parameters for steam extraction openings for further numerical and experimental studies on the performance of RSCE.Practical application of steam or gas extraction is suggested for solving of some problems associated with cavitating pumping of cryogenic liquid. | LIKHACHEV Dmitriy S. LI FengChen | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，3： | 9 |
| 2 | Experimental study on the performance of a rotational supercavitating evaporator for desalination显示文摘Efforts have been made on experimental research of a supercavitation device for desalination,which is named rotational supercavitating evaporator(RSCE).The RSCE is characterised by the simple construction and responsive capacity control,and only requires rough filtration of the source water for scaling-and fouling-free operations.The present study has been conducted for the water flow at temperature of around 22–30°C and atmospheric pressure as the first step for investigation of the performance characteristics of RSCE.The multiply factor extremal experiments conducted with the Box-Wilson’s method have revealed the salinity of the condensate,the temperature of steam inside the supercavity,and dependence of the shape of supercavity on the rate of steam extraction and rotation speed of impeller.The shape of impeller and the expected supercavitating effects it generates have been confirmed by experimental results at the rotation speed of 5430 rpm(round per minute).The design of the steam extraction openings has been approved during the evacuation of steam.The experimental dependencies have been obtained in form of statistically valid regression equations,which can be used for engineering design of RSCE. | LIKHACHEV Dmitriy S LI FengChen KULAGIN Vladimir A | 2014 | Science China(Technological Sciences)2014，57，11： | 6 |
| 3 | 涡流发生器对水翼流动分离的控制作用研究显示文摘流动分离是引起水翼升阻比下降、诱发振动和噪声的重要原因。本文将涡流发生器应用于水翼,实验研究了涡流发生器对水翼上流动分离的抑制作用。通过在NACA0015翼型前缘设置一列微型涡流发生器,测试了不同来流速度下,水翼吸力面的压力分布。实验结果发现,涡流发生器应用于水翼时,可增大近壁面流体动量,从而延迟甚至抑制流动分离的产生。类似于空气中作用,涡流发生器的高度对其控制流动分离的效果影响很大,当高度相对边界层厚度较小时,涡流发生器能较好地抑制流动分离。然而随着高度增加,对效果的影响却是非线性的,其原因还有待于进一步深入研究。 | 车邦祥 Likhachev D S 曹琳琳 邱宁 初宁 吴大转 | 2018 | 工程热物理学报2018，39，1： | 3 |
| 4 | Different modeling concepts of magnetic shape memory and their comparison with some experimental results ob- tained in Ni-Mn-Ga显示文摘 | Likhachev A A Sozinov A Ullakko K | 2004 | Materials Science and Engi- neering A-Structural Materials Properties Microstruc- ture and Processing2004，378，12： | 1 |
| 5 | 查看详情显示文摘 | Sozinov A Likhachev A A Ullakko K | | 0，，： | 1 |
| 6 | Anytime search in dynamic graph显示文摘 | Likhachev M Ferguson D Gordon G | 2008 | Artificial Intelligence2008，172，2： | 1 |
| 7 | Lifelong planning A*显示文摘 | KOENIG S LIKHACHEV M FURCY D | 2004 | Artificial Intelligence2004，155，12： | 1 |
| 8 | Incremental heuristic search in AI显示文摘 | KOENIG S LIKHACHEV M LIU Y | 2004 | AI Magazine2004，25，2： | 1 |
| 9 | Fast Replanning for Navigation in unknown terrain显示文摘 | KOENIG S LIKHACHEV M | 2005 | Transactions on Robotics2005，21，3： | 1 |
| 10 | Magnetic-field-controlled twin boundaries motion and giant magneto-mechanical effects in Ni-Mn-Ga shape memory alloy显示文摘 | LIKHACHEV A A ULLAKKO K | 2000 | Phys Lett A2000，275，12： | 1 |
| 11 | Fast replanning for navigation in unknown terrain显示文摘 | Koening S Likhachev M | 2005 | IEEE Transactions on Robotics2005，21，3： | 1 |
| 12 | Motion planning in urban environmems显示文摘 | Ferguson D Howad T M Likhachev M | 2008 | Journal of Field Robotics2008，25，： | 1 |
| 13 | Lifelong planning A*显示文摘 | KOENIG S LIKHACHEV M FURCY D | 2004 | Artificial Intelligence2004，155，1： | 1 |
| 14 | Quantum dynamics of charge transfer on the one-dimensional lattice:Wave packet spreading and recurrence显示文摘The wave function temporal evolution on the one-dimensional(1D) lattice is considered in the tight-binding approximation. The lattice consists of N equal sites and one impurity site(donor). The donor differs from other lattice sites by the on-site electron energy E and the intersite coupling C. The moving wave packet is formed from the wave function initially localized on the donor. The exact solution for the wave packet velocity and the shape is derived at different values E and C. The velocity has the maximal possible group velocity v = 2. The wave packet width grows with time ~ t1/3and its amplitude decreases ~ t-1/3. The wave packet reflects multiply from the lattice ends. Analytical expressions for the wave packet front propagation and recurrence are in good agreement with numeric simulations. | V N Likhachev O I Shevaleevskii G A Vinogradov | 2016 | Chinese Physics B2016，25，1： | 1 |
| 15 | Giant magnetic-field-induced strain in NiMnGa seven-layer martensitic phase显示文摘 | SOZINOW A LIKHACHEV A A LANSKA N ULLAKKO K | 2002 | Appl Phys Lett2002，80，10： | 1 |
| 16 | Fast replanning for naviga- tion in unknown terrain 显示文摘 | KOENIG S LIKHACHEV M | 2005 | Robotics IEEE Transactions on2005，21，3： | 1 |
| 17 | Giant magnetic-field-induced strain in NiMnGa seven-layered martensitic phase显示文摘 | SOZINOV A LIKHACHEV A A LANSKA N | 2002 | Applied Physics Letters2002，80，10： | 1 |
| 18 | Magnetic-field-controlled twin boundaries motion and giant magneto-mechanical effects in Ni-Mn-Ga shape memory alloy 显示文摘 | Likhachev A A Ullakko K | 2000 | Phys Lett A2000，275，6： | 1 |
| 19 | Giant magnetic - field -induced strain in NiMnGa seven -layered martensitie phase 显示文摘 | Sozinov A Likhachev A Lanska N | 2002 | Applied Physics Letters2002，，： | 1 |
| 20 | Crystal structures and magnetic anisotropy properties of Ni-Mn-Ga martensitic phases with giant magnetic-field-induced strain显示文摘 | Sozinov A Likhachev A A | 2002 | IEEE Trans Magn2002，38，： | 1 |
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