wzelik

55 Reputation

11 Badges

9 years, 119 days

Social Networks and Content at Maplesoft.com

MaplePrimes Activity


These are replies submitted by wzelik

Thank you,

 

wzel

Thank you,

 

wzel

Hi, 

 

I don't belive that Maple can't produced correct solution. Is there a chance to get any advice?

I would be appreciated,

 

wzel

 

Hi again,

What is wrong with solutions?

Why result is incorect comparing to the Mathcad?

wzel

 

restart

Data's: (rho+[-kg/m^3], Do+[-m], L+[-m], eta+[-Pa*s], g+[-m/s^2], h+[-m])

rho := 8740:``

Reynolds number:

RE := proc (V) options operator, arrow; Do*V*rho/eta end proc:

Darcy friction factor:

lambda := proc (RE) options operator, arrow; piecewise(4400 < RE, .3164/(V*Do*rho/eta)^.25, 64/RE) end proc;

proc (RE) options operator, arrow; piecewise(4400 < RE, .3164/(V*Do*rho/eta)^.25, 64/RE) end proc

(1)

Darcy-Weisbach equation

eq := rho*g*h = (1/2)*lambda(RE(V))*L*V^2/Do

300087.900 = 12.50000000*piecewise(4400 < 104880.0000*V, 0.1758179877e-1/V^.25, 0.6102212052e-3/V)*V^2

(2)

Velocity [m*s^(-1)]

Vo := fsolve(eq, V = 1)

3205.320961

(3)

``

 

 

Mathcad solution below

 

Download Vo_DW_ew_1.mw

 

 

 

Hi,

ad1. Please see enclosed,

ad2. ...Indeed, it is liquid metal..

ad3. Why?, For Mathcad is not a problem. Maple in units area is even stronger, but of course less comfortable.
I'm couriuos if it possible to solved Darcy-Weisbach equation in Maple in the same (or similar) way.

 

Are you mean m and cm?, and:

>>>Don't mix m and sm

it's typping error... :-)

 

wzel

Vo_DW_eq.mw

Thank you Jarekkk!

 

wzel

Thank you Jarekkk!

 

wzel

Hi again!

another topic
...why evalf doesn't work

wzel

slider1.mw 

Hi again!

another topic
...why evalf doesn't work

wzel

slider1.mw 

Thank you,

...but I rather thought about:

with(Units[Natural]:
Do(cos(%Slider*deg) inside Component properties ->"Action when value changes" field.
when slider vaule changes beetwen 0..90 deg

 

wzel 

Thank you,

...but I rather thought about:

with(Units[Natural]:
Do(cos(%Slider*deg) inside Component properties ->"Action when value changes" field.
when slider vaule changes beetwen 0..90 deg

 

wzel 

@pagan: Thank you once again!

But I'm not sure if you exacly understand what I mean.

In your code I must:
#1 - change slider position, #2 - execute worsheet to obtain value.

I'm wondering if it possible in Maple
#1. change the slider position and get a 'a' value on the same time.

...without additionall clicking.

 

wzel 

 

@pagan: Thank you once again!

But I'm not sure if you exacly understand what I mean.

In your code I must:
#1 - change slider position, #2 - execute worsheet to obtain value.

I'm wondering if it possible in Maple
#1. change the slider position and get a 'a' value on the same time.

...without additionall clicking.

 

wzel 

 

Thank you,
 
I'm asking about possiblility to updating 'a' value during moving a Slider.
Slider represet 'q' value which I'd like to display on screan simultanoulsy. 

It is very easy in Mathcad

Thank you,
 
I'm asking about possiblility to updating 'a' value during moving a Slider.
Slider represet 'q' value which I'd like to display on screan simultanoulsy. 

It is very easy in Mathcad

1 2 3 Page 2 of 3