question about createpde and thermalconductivities

Hello,

I try to use matlab to study the Heat transfer. When I use function

createpde for steadtstate like the example:
thermalmodel = createpde('thermal').

The system mention me that : Error using pde.PDEModel (line 97) Expected input to be one of these types:

double, single, uint8, uint16, uint32, uint64, int8, int16, int32, int64 Instead its type was char. Error in createpde (line 36) pdem = pde.PDEModel(varargin{:});

Error in bridgman (line 4) thermalmodel = createpde('thermal')

I would like to know why? And when I just use

thermalmodel = createpde, 
it's OK.

Another question is how to use thermalconductivity when I use thermalconductivity, it always mention me that ThermalConductivity is not defined.

Thanks

Answer 1

[Ravi Kumar]

Hi Xiaofei,

Which version of MATLAB are you on? Note that creation of thermal analysis model using createpde is supported in MATLAB R2017a.

-Ravi

[Xiaofei BAI]

Hi Ravi,

Thanks for your reply. My version is R2016a. You mean that I cannot use it in my version?

Best

Xiaofei

[Alan Weiss]

Yes, that is what it means. See the Release Notes.

Alan Weiss

MATLAB mathematical toolbox documentation