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Questions related from Lena J-T Strömberg
Arrow symbol for a vector . My question concern the use of an arrow to represent a vector. For a spatial vector, it shows the direction, and this is also the case for the vector representation of...
07 July 2018 5,094 1 View
What is the name of the constant r in the 'continuum mechanics version' of the ideal gas law? It reads p=rho r theta and r=k/mw where k is Boltzman's constant and mw is moleculeweight.
09 September 2017 7,888 0 View
It comes sometimes from Laplace equation. But if such dependency, there are options : one could use exp(-r), which is much easier in calculations 1/sqrt(r), which is the solution in fracture...
06 June 2017 6,939 14 View
Are there any general statements to refer to, concerning this? For example so-called acoustic pressure occurs both in the water and in structures in the water, so that is one case. Other...
06 June 2017 3,870 5 View
The question concern this article with calculations of a fan. The temperature enters in the denominator, and I guess it is due to an explicit dependency on temperature and through that on spatial...
06 June 2017 9,633 0 View
What models are there for light in a plasma and in a lightning at thunder? Maxwell's equations is not so easy to invoke in continuum mechanics.
06 June 2017 7,955 11 View
What is the recent 'definition' of dualism? Does it concern a particle and its interaction, or more a particle in a traveling wave motion? Can it be described with a density, or will that be a...
06 June 2017 6,116 32 View
There is an entropy inequality in fluid mechanics, and from bounds to that, a first order wave (convective wave) is given. With assumptions of ideal gas, internal energy proportional to...
06 June 2017 6,473 9 View
Are there any famous and easy to read, or benchmark study on wavelets, where they use dimensions for time and frequency? If the amplitudes have a correlation to spatial coordinates, for any...
05 May 2017 3,892 2 View
I looked at energy conservation in e.g. a pipe, assuming internal energy proportional to temperature. Then with the ideal gas law, the static solution is a mode shape, with wavelength depending on...
05 May 2017 8,498 2 View
Another question provided this answer from Mr M Abdeldjalil DJEHAF http://www.quickfield.com/advanced/transposition.htm At the pole, there are points A, B,C, whith the 3- phase discharges. Can...
02 February 2017 8,511 3 View
