Recent content by germana2006

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    Undergrad Understanding Non Equilibrium Systems: Definition and Examples

    What means non equilibrium systems?
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    Solving Flow Velocity in 2D for Flow Past a Circle

    In this book, they threat the problem in spherical coordinates (r, \vartheta, \phi) or cartesian coordinates (x,y,z) and the problem proposed here is to resolve in two dimensions only, polar coordinates (only r, \vartheta) or cartesian coordinates (x,y).
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    Calculate Tangential Rotational Force of Sphere in Flow

    The friction force is a tangential force, then if I have to calculate the tangential rotational force, then I have only to calculate the friction force written above?
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    Calculate Tangential Rotational Force of Sphere in Flow

    Homework Statement Considering a unsteady, incompressible flow past a sphere placed in a channel. The sphere is offset somewhat from the center of the flow to destabilize what otherwise would be steady-state symmetrical flow. Calculate the tangencial rotational force at the sphere.Homework...
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    Creating a Simple Calculator Program in C

    I have found the problem, it was that I have put while(op<=4) at the end of the first menu instead of at the end of the second menu. When I put it at the end of the second menu, it works. My next step is to try to change the goto loop for one of the other you purpose.
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    Creating a Simple Calculator Program in C

    I have done with goto, because I don't know how can I do with other loop.
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    Creating a Simple Calculator Program in C

    Hello, I am learning to program in C. I have to do a program for a simple calculator. It should have to menus, one the operation menu with the addition, subtraction, multiplication and division, the second one with the options new calculation, other operation and finish. I have done, there is...
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    Solving Symmetric Tensor: c\cdot (A \times b) \neq (A \times b) \cdot c

    Homework Statement Demostrate: c\cdot (A \times b) \neq (A \times b) \cdot c with A \in\Re^{3 \times 3} is a symmetric Tensor of second order and b,c \in \Re^3 are vectors Homework Equations The Attempt at a Solution (A \times b)_ {ij} = A_{ij} \epsilon _{jkl} b_l
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    Mathematics Handbook: Bronstein vs Riley

    Hello, I am looking for a handbook of mathematics to buy and to look when I need some mathematic help during my PhD instead to look in my students notes. I am looking for this two books, what do you think about them? Which recomended me to buy? Handbook of mathematics: Bronstein...
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    Which is the area of each faces for the rectangular prism.

    Homework Statement Considering a rectangular prism bounded by six rectangular faces (x=2, y=0.5, z=1) and a cylinder (r=0.5, heigh h=2) that cut the rectangular prism in x=1 y=0 and z=0 with a inclination of 45 grads in y and z. Which is the area of each faces for the rectangular prism. I...
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    Graduate Hard Sphere Model: Colloids & Polymers Fluids

    Could you give me the complete reference of the paper (Percus-Yevick model)? I didn't find.
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    Graduate Hard Sphere Model: Colloids & Polymers Fluids

    Could you advise some book to learn about the topic?
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    Graduate Hard Sphere Model: Colloids & Polymers Fluids

    I have not idea about this model. I need a explication about it.
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    Graduate Hard Sphere Model: Colloids & Polymers Fluids

    What do you know about the hard sphere model? and for this model used for colloids and polimers in fluids?
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    How do I properly normalize a function over a region in space?

    Homework Statement I have normalized the following function: Q=\int (1-y^2) dx dy Homework Equations using the expression for the normalization \vert N \vert ^2 \vert \int Q^* Q dx dy \vert^2 =1 The Attempt at a Solution then I obtained \int Q^* Q dx dy = x (y-...