Recent content by giber

the project is in the conceptual stage... it´s a preliminar project, to have some ideia about a turboshaft turbine that produces 140kw. i´m not using another tipe of engine, and to make the calculations i need the eficiencies, i knoe that i can obten them from de definitions, but for that i have...

i know that, but the problem is that for a small or micro turbine, the eficiency of the compressor, turbine, the saft that link the compressor to turbine and the free power turbine is less than normal, it´s about 70% to 80%, what i need is some information to choose and explain qhy i choose this...

hello, i have a project of a small turboshaft turbine with regenerator to produce a power of 140 kW, with aplications on ligth helicopters and industrial co-generation. does aonyone knows here i can find some references about te eficciencies of the components, such as compressor, turbine...

were is some code i have made were is some code i have made but the temperature is wrong in the end... i´m using the method line-by-line with the TDMA in the vertical

i don´t find anything about it... all papers to pay, not even examples of satellites... the only information was that URSS send one (cosmos 149) with gravitational and aerodynamic control.. nothing much...

i need to do a work about aerodynamic stabilization on satelites.. can anyone help thanks

i have to do a program in fortran to resolve this problem. it´s a problrm of convective heat transfer, bi-dimensional with generation of heat on a uniform meshgrid. if you know, it´s a problem from the book "Numerical Heat Transfer and Fluid Flow_Suhas V. Patankar_1980" - exercice 5.1...

i need to know if someowne can help me with a program that i have to do to resolve a heat problem of the Patankat(autor) book. exercise 5.1 is the problem and to solve it i need to use the upwind method and the CDS method.. please help thanks

hello once again... now i need to find specific information about aircrafts of the ww2 and the airfoils that they used... all of this for subsonic aircrafts... pictures and information for a presentation... thanks once again

hello.. my last question wasn´t very good on exlplaining what i need.. i need the strutural drawings of the real supermarine spitfire, because i want to draw it on the program ' catia' develop by dassault, this program is like 'solidworks' and for that i need detail plans about the plane.. i...

hello.. the problem is that i have to make a subject about low speed airfoil's and i´m trying to find information of airctaft's that flight at subsonic regime to present as example... soo if you can help me it would be very goog.. thanks

hello... i have a lot of questions :smile: soo i hope that i can answer this one to... i´m trying to know were can i get information about planes that flight in the subsonic regime of mach.. for example civil planes, or even military planes... thanks people...

hello.. once again i came to you for help. this time i need to know were can i get the designs of the supermarine spitfire... i´m trying to make a skatch of the spitfire in the program 'catia' from dassault, and for that i need the plans of the model, any model of the spitfire...

hello people. i´m a aeronautical engineer student and i need to do a work about low speed airfoil.. can anyone tell me where i can get information about this subject.. thanks