What is the low temperature limit of modern calorimeters? How the specific heat measurements are realized near 0.1 K?

I'm searching the description of specific heat measurement technique below 1K.

06 July 2016 5,605 4 View

Are there any theoretical or experimental data about the low-temperature specific heat of paramagnetic solids with dipolar (not exchange) interaction?

The Schottky anomaly is well-studied, but it exists in ideal systems without interactions. What is the dependence of specific heat on temperature, if the spin-spin interaction is significant? I've...

02 March 2016 9,727 2 View

Is there any way to effectively calculate the confluent Heun function?

I need to make a relatively quick calculation of confluent Heun function (It is HeunC in Maplesoft Maple notation) values with different parameters in different points. I understand that it is...

05 June 2014 5,370 7 View

Are there any studies of fluid flow stability over the pure Darcy porous medium?

04 May 2014 9,799 2 View

Can the gradient of granular admixture volume fraction be included in user-defined function in ANSYS Fluent?

I need to make a UDF containing follow source term: Q = A(C) / (1 - C) * dC/dz, where C is volume fraction of granular admixture (e.g., sand or clay) and A is some nonlinear function. Is there any...

31 December 2013 1,735 3 View

Is it possible to apply the Beavers-Joseph condition with the Brinkman model?

I study the liquid flow above porous medium layer is saturated with the same liquid. The liquid is viscous, and I use the Brinkman model as main with boundary conditions for viscous stresses is...

11 December 2013 5,316 12 View

What is the correct boundary condition at an impermeable wall for porous media flow?

The most common condition I have seen is vanishing of normal component of fluid velocity at the wall. It makes sense, because Darcy's law describes pore-averaged flow, and the fluid moves even...

11 December 2013 6,396 6 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Gel electrophoresis result for total RNA samples, 1.5 Agarose gel was used, How to improve the integrity of RNA?

Gel electrophoresis, RNA degradation, RNA extraction from fresh tissue

02 March 2021 5,433 5 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View