# Yazar: Ümit YELKEN

4 Eylül 2020

## Cost calculation of unmanned aerial vehicle payload transportation with selected RC Jet Engine

Nowadays, payload transportation is carried out using unmanned aerial vehicles. New studies are emerging both in the field of defense industry and in the civil field. In order to calculate these costs and determine design criteria, I developed a software that performs technical calculations and deducts costs for an aircraft flying using kerosene. In this software, the average airfoil profile values ​​were used with the […]

16 Nisan 2020

## Rocket Combustion Chamber and Nozzle Design Calculator

I share this software, which belongs to me, which the design parameters of the rocket combustion chamber and nozzle can be calculated. Some parameters of the combustion chamber need to be calculated using NASA’s CEA program. Calculations are made with the assumption that there is no shock in the nozzle. I plan to add this in my later developments. You can use the link below […]

16 Mart 2020

## Conjugate Heat Transfer Analysis of Rotating Detonation Engines

Also available on ResearchGate

11 Haziran 2018

## CFD – Solution of Laplace Equation With Fully Implicit LU Factorization, Jacobi, Gauss-Seidel, SOR Algorithms

I will share MATLAB code later

11 Haziran 2018

11 Haziran 2018

7 Mayıs 2017

## ELECTRIC PROPULSION SYSTEM REVIEW OF BEPICOLOMBO

BepiColombo is Europe’s first mission to Mercury. It will set off in October 2018 on a journey to the smallest and least explored terrestrial planet in our Solar System. When it arrives at Mercury in late 2025, it will endure temperatures in excess of 350 °C and gather data during its 1 year nominal mission, with a possible 1-year extension. The mission comprises two spacecraft: […]

21 Nisan 2017

## Normal Shock Wave Downstream Side Calculator

It is easy to find values of downstream side of Normal Shock. You dont have to waste your time searching for values anymore

28 Kasım 2016

## Kişisel Muhasebe Programı 1100 Kullanıcıya Ulaştı!

C# öğrenirken acemilikten profesyonelliğe geçiş aşamamda veritabanı alt yapımı da kullanarak C# Mysql karışımı olarak yazdığım ”Kişisel Muhasebe Programı” ismini verdiğim yazılımım bugün 1100 kullanıcıya erişti. Kullanıcılar aktif şekilde yazılımımı kullanıyor ve bu beni çok mutlu ediyor. Programın v2.1 versiyonunu çok yakında yayınlayacağım. Çok güzel özelliklerle programı süslüyorum. Eğer sizin de program ile ilgili görüşleriniz varsa programa eklenmesini istediğiniz özellikler varsa bu postun altına yorum olarak […]

8 Haziran 2016

## PARS Rocketry Team Avionics System Design Review

This is PARS Rocketry Team Avionics System Design Review and written by PARS Avionics System Team. All components which are using in our electronic bay , explained in this pdf file. Thanks to Ömer Uçar.   PARS – Umit YELKEN