How to avoid elements with small edges

Hello,

I am new to Simlab. When I mesh I get these elements with small element edge length. Please refer to the example.

How can I avoid them. I tried cleaning up. it ran for 4 hours and simlab crashed. I tried other methods, simlab crashed.

How can I clean this up before doing mesh controls or how can I select faces like these using 'select features' so I can give a separate mesh control? 

<?xml version="1.0" encoding="UTF-8"?>

<?xml version="1.0" encoding="UTF-8"?>