Issue with unisize runs in ELV https://dlt-acc.firelay.cloud/c/message_boards/find_thread?p_l_id=3228466&threadId=5654870 2026-05-12T13:21:57Z 2026-05-12T13:21:57Z Mohammad Kifayath Chowdhury https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=3228466&messageId=5654894 2023-02-09T11:15:01Z 2023-02-09T11:15:01Z

In addition, I am using flowtype 1 (steady), and steady solver type 1 (energy euler)

Mohammad Kifayath Chowdhury 2023-02-09T11:15:01Z Mohammad Kifayath Chowdhury https://dlt-acc.firelay.cloud/c/message_boards/find_message?p_l_id=3228466&messageId=5654869 2023-02-09T11:13:16Z 2023-02-09T11:13:16Z

Hi! I am trying to run a very simple unisize, constant discharge, single branch model in elv to find the equilibrium solution. The inputs look like the following:<br /> input.sed.dk =[2]./1000; input.ini.Fak = [1]; input.ini.fsk = [1];<br />input.ini.slopeb = 1*1e-4; input.ini.initype=1;<br /><br />input.bcm.type=1; input.bcm.NFLtype=1; input.bcm.NFLparam=[1e-4,0.05];  Qbk0_base = 0.05; input.bcm.Qbk0_tot = 0.05;<br /><br />input.bch.uptype=1; input.bch.Q0=2000; input.tra.cr=2 %Engelund Hansen; <br /><br />input.mor.gsdupdate=7;<br /><br />input.grd.L=100e3; input.grd.dx=2000; input.frc.Cf=0.004; input.mdv.dt=86400<br /><br /><br />When I run this (along with the other inputs) input set up to calculate the equilibrium with initype=1, the get_equivals_V gets an error - &#34;Error using optimoptions<br />Invalid solver specified. Provide a solver name or handle (such as &#39;fmincon&#39; or @fminunc).<br />Type DOC OPTIMOPTIONS for a list of solvers.&#34;<br /><br />if I choose initype=2, then the substrate runs out. I am not sure which parameter I am putting in wrong. Any help would be much appreciated. 

Mohammad Kifayath Chowdhury 2023-02-09T11:13:16Z