<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:24px"><div id="yui_3_16_0_ym19_1_1470853711136_5188" dir="ltr"><span style="font-family: "Helvetica Neue", "Segoe UI", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 13px;" id="yui_3_16_0_ym19_1_1470853711136_5209">Dear khaled,</span><br></div><div id="yui_3_16_0_ym19_1_1470853711136_5188" dir="ltr"><span style="font-family: "Helvetica Neue", "Segoe UI", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 13px;" id="yui_3_16_0_ym19_1_1470853711136_5340">reduce the time step. </span></div><div id="yui_3_16_0_ym19_1_1470853711136_5188" dir="ltr"><span style="font-family: "Helvetica Neue", "Segoe UI", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 13px;" id="yui_3_16_0_ym19_1_1470853711136_5357">because you have used 3 hourly data, </span><span style="font-size: 13px; font-family: "Helvetica Neue", "Segoe UI", Helvetica, Arial, "Lucida Grande", sans-serif;" id="yui_3_16_0_ym19_1_1470853711136_5365">your time step should be equal or less than 3 x 0.816 (time step =<2.448)</span></div><div id="yui_3_16_0_ym19_1_1470853711136_5188" dir="ltr"><span style="font-size: 13px; font-family: "Helvetica Neue", "Segoe UI", Helvetica, Arial, "Lucida Grande", sans-serif;" id="yui_3_16_0_ym19_1_1470853711136_5389">unfortunately u can't use decimal number directly. to handle for that issue,</span></div><div id="yui_3_16_0_ym19_1_1470853711136_5188" dir="ltr"><span style="font-size: 13px; font-family: "Helvetica Neue", "Segoe UI", Helvetica, Arial, "Lucida Grande", sans-serif;" id="yui_3_16_0_ym19_1_1470853711136_5441">go to the mentalist and set as bellow :</span></div><div id="yui_3_16_0_ym19_1_1470853711136_5188" dir="ltr"><span style="font-size: 13px; font-family: "Helvetica Neue", "Segoe UI", Helvetica, Arial, "Lucida Grande", sans-serif;"><br></span></div><pre style="word-wrap: break-word;" id="yui_3_16_0_ym19_1_1470853711136_5589">&domains
time_step = 0,
time_step_fract_num = 306,
time_step_fract_den = 125,</pre><pre style="word-wrap: break-word;" id="yui_3_16_0_ym19_1_1470853711136_5589">since, 2.448=306/125. <br></pre><pre style="word-wrap: break-word;" id="yui_3_16_0_ym19_1_1470853711136_5589">note that the first line use the integer number. here we have switched off the first line and used the fraction number of 2.448</pre><pre style="word-wrap: break-word;" id="yui_3_16_0_ym19_1_1470853711136_5589">When you use the integer less than this fraction or the fraction number equal or less than 306/126 it should also work.</pre><pre style="word-wrap: break-word;" id="yui_3_16_0_ym19_1_1470853711136_5589">Batebana </pre></div></body></html>