When a shock wave hits a solid surface the resulting fan returns as one from the opposite family while when one hits a free boundary the fan returns as a fan of opposite type.
22.
He pioneered the study of diffusion-controlled moving boundary problems in the 1970s his involvement centring on models for phase changes and elastic contact problems all built around the paradigm of the Hele-Shaw free boundary problem.
23.
In the case of a rigid boundary at the bottom and a free boundary at the top ( as in the case of a kettle without a lid ), the critical Rayleigh number comes out as Ra = 1, 100.65.
24.
The earliest distinguished studies of academic type on the theory of a cavitating flow with free boundaries and supercavitation were published in the book " Jets, wakes and cavities " followed by " Theory of jets of ideal fluid ".
25.
In image processing, the "'free boundary condition "'is the convention used when applying a convolution kernel to a digital image in which pixel locations that lie outside the image boundaries are interpreted as having a value of zero.
26.
*Free boundary : Examples of this type are an open-ended organ or woodwind pipe, the ends of the vibrating resonator bars in a xylophone, glockenspiel or tuning fork, the ends of an current ) is forced to zero at the boundary.
27.
There are no constraints here on the values of the function " f " ( " x ", " y " ) on the boundary of the lattice grid, thus this is the case of the homogeneous Neumann boundary condition, i . e ., free boundary.
28.
Another venue combining the existing exact solutions with approximated and heuristic models was explored in the work " Hydrodynamics of Flows with Free Boundaries " that refined the applied calculation techniques based on the principle of cavity expansion independence, theory of pulsations and stability of elongated axisymmetric cavities, etc . and in " Dimensionality and similarity methods in the problems of the hydromechanics of vessels ".
29.
He was Co-Chair of the Theme Programme on Free Boundary Problems and Related Topics, Isaac Newton Institute for Mathematical Sciences ( 2014 ); Chair ( 2009 10 ) and Program Director ( 2005 06 ) of Activity Group on Analysis of Partial Differential Equations, Society of Industrial and Applied Mathematics, USA; Chair of the Organizing Committee, SIAM Conference on Analysis of Partial Differential Equations ( 2006 ); a Member of the AMS-MAA Program Committee for the Joint Annual National Meetings ( 2008 ), American Mathematical Society Scientific Committee for the Joint International Meeting with Shanghai Mathematical Society ( 2008 ), AMS Program Committee for the Annual Meeting ( 2009 ), and Committee for National Meetings of American Mathematical Society ( 2007 10 ); Panelist of National Science Foundation ( 1999 2011 ); and a Member of Research Council of Norway ( 2005 09 ).
