Questions tagged [model]

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Convert the following model into an LP model (not asking for standard form), includes a max (a,b,c,d)

Convert the following model into an LP model. Note that you're not being asked to convert this to standard form. $$\min z = \max (x_1, x_2, x_3, 2000)$$ s.t. $$-2x_1 + x_2 + x_3 \geq -4$$ $$3x_1 - ...
1
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0answers
106 views

Conditions for always positive gradient of heat field in evolutionary thermo-elastic system

I am investigating stability and convergence of series of approximations for coupled thermoelasticity problem yielded by one-step recurrent time-integration scheme. I've managed to show that the one-...
3
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2answers
8k views

scipy odeint - Excess work done on this call

I'm newbie both in calculus and Python/Scipy so I apologize if this question is too dumb. I'm trying to model flow between two pressure vessels. Let's say we have two points and a link between them ...
5
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2answers
283 views

Dimensionality reduction of the domain of f(x)

I'm wondering if there is something analogous to a PCA for data sets where there is a dependent variable. (Though I am interested in any method of dimensionality reduction, PCA is just an example.) ...
2
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1answer
91 views

Best place to start learning Stereophotogrammetry

Firstly I would like to achieve a final goal as can be found in the links below: Link 1 Link 2 Now I started doing a little bit of research and found that Stereophotogrammetry is the field I should ...
4
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0answers
113 views

What are the governing equations solved in coupled atmosphere-ocean models?

In (hydrostatic) atmospheric general circulation models, for example the so-calle Primitive Equations, consisting of the horizontal momentum equation, the hydrostatic balance, the continuity equation, ...
2
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1answer
64 views

Model Spinup time

While I look up programming and technical stuff on Stack Overflow all the time, I figured that would probably be the wrong forum for a question like this. Some background: I'm a climate modeler ...
7
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2answers
167 views

State of the art climate models

What are some of the state of the art models for climate simulation? I'm looking for downloadable source codes. For example in meteorological research I'm personally familiar with WRF, the Weather ...