In order to study in Brazil, you need to present a series of documents at the embassy or consulate you have chosen to get your Student Visa. In general, the documents needed are the following ones:
– Form for visa filled and signed (please contact the embassy or consulate you have chosen to take your visa for more information about this form);
– A valid passport;
– Acceptance letter from a Brazilian educational institution (in this case, from UFPel);
– Term of financial responsibility issued by the responsible institution, if you receive a scholarship, or issued by a person responsible for your funding, which can include yourself;
– Criminal record checks;
– A proof of your entry and exit tickets from Brazil.
Source: http://www.dce.mre.gov.br/estrangeiros/vistos_e_documentacao.php