A check will be mailed to the address that you put on your tax return since the IRS will not make any deposits into foreign bank accounts. Checks that are mailed internationally will take a while longer to receive, after the IRS has processed your return.
To check the status of your refund once the IRS accepts it, go to
Where’s My Refund. If you haven't received it within 45 days after they specify on that site that they have mailed it, you need to contact the IRS by calling the International Taxpayer Service Call Center at 267-941-1000 (Monday-Friday, 6 am-11 pm EST).