M Mohammad abdelhadi New Member Apr 9, 2015 #1 dear all, please find attached file , how to solve this equation in excel Regards,,,, Attachments Qustion1.jpg 58.8 KB · Views: 0
Hui Excel Ninja Staff member Apr 9, 2015 #2 Mohammed Firstly, Welcome to the Chandoo.org forums I solved it suing Goal Seek, whuich is probably not the best tool, but it works Enter the values into the cells B2:C7 Select B2:C7 Goto Formulas, Create From Selection Tick the Left Column only, Apply Put a value of 1 into C7 C10: =1/SQRT(x) C11: =-2*LN((2.51/(Re*SQRT(x)))+(K/D)*0.269) C13: =C10-C11 Select C13 Goto, Data, What-If Analysis, Goal Seek Ok I'm not sure if that is a good value of g or not? or see attached file: Attachments Solve Eqn.xlsx Solve Eqn.xlsx 381 KB · Views: 0
Mohammed Firstly, Welcome to the Chandoo.org forums I solved it suing Goal Seek, whuich is probably not the best tool, but it works Enter the values into the cells B2:C7 Select B2:C7 Goto Formulas, Create From Selection Tick the Left Column only, Apply Put a value of 1 into C7 C10: =1/SQRT(x) C11: =-2*LN((2.51/(Re*SQRT(x)))+(K/D)*0.269) C13: =C10-C11 Select C13 Goto, Data, What-If Analysis, Goal Seek Ok I'm not sure if that is a good value of g or not? or see attached file:
Hui Excel Ninja Staff member Apr 9, 2015 #3 Once the above is setup you may be better to use Solver to solve this Goto Data, What-If Analysis, Solver It has much better techniques for looking for a solution.
Once the above is setup you may be better to use Solver to solve this Goto Data, What-If Analysis, Solver It has much better techniques for looking for a solution.